This site is presented to explore the role of public land in Panamerica through the legacy of the Mexican Ranchos of California. As you explore, imagine broadly what remedies can be offered to repair the land and the people who were recently disposessed and evicted from your region.

Street scene in the Forty-Nine Camp at the Midwinter Fair, illustration from The Rural CalifornianBird's eye view of San Diego, California, 1876, from the north-east looking south-west (Library of Congress)

California Ranchos

During the two decades following Mexican Independence the northernmost reach of the Mexican State, named Alta California, was sparcely populated compared to any time before the Spanish conquest or after American colonization, which would come as a deluge starting in 1849.
In 1845, by events leading up to the annexation of Texas, it was likely clear to the governor of Alta California, Pío Pico, that the American armies would soon seize the northern lands of Mexico. During this year he quickly granted the prime California pasture lands in vast swaths of public land to petitioners, well represented by friends, family members, allies, and himself. The boundaries of these land divisions often loosely defined in coarse sketches of mountains and creeks .
Mexican Land Grants, recognized by the Treaty of Guadalupe Hidalgo, within twenty years of annexation would be mostly be bought by speculators from Europe and Connecticut, and the many arms of the Atchison, Topeka, and Santa Fe Railroad Company.
Just as the earlier Mission system of Spain pushed indigenous people to the rocky boundaries of the Southern California landscape, the American colonization would by 1870 create defacto domination across previously sparely-populated land. By the year 1900 dammed rivers and citrus grove subdivisions would trace the grid of a Southern California that a comtemporary reader would faintly recognize. After the dam building binge of the 1930s the natural spaces dried up and so did most life making a living on the outskirts of the water department. San Diego Land and Town Co. advertisement: No Frosted Fruit, 40,000 acres around San Diego Bay, Sweetwater Dam irrigating system, National City
As I have, you will find these names are still inscribed in many small places on roads broken and unbroken that connect modern tracted-Southern California. And as we trace roads and creeks we will start to discover the layered landscape that has always been right here under our feet.

San Diego County

We begin our exploration starting with the southern most region of California, San Diego County.

Ranchos by Name

Rancho Milejo

Rancho Otay

Rancho de la Nacion

Developed by Atchison, Topeka, and Sante Fe railroad off shoot named San Diego Land Development Company. See Sweetwater Dam. See "No Frosted Fruit".

Rancho Janal

Rancho Ex-Mission

Rancho El Cajon

Rancho Jamul

Rancho Cuyamaca

The most topographical of the land grants in San Diego County and once of the few remaining in public hands, albiet federal hands.

Rancho Valle de San Felipe

This rancho follows a tapered valley which funnels from the mountains to the desert below.

Rancho Santa Ysabel

Rancho Santa Ysabel in the valley with the present-day town sharing the same name at the junction of highways 78 and 79.

Rancho Valle de Pamo

This valley has undergone many name changes and through suburbanization has preserved rural contours of the land and easements. See street names.

Rancho Cañada de San Vicente y Mesa del Padre Barona

Two lobes in one grant, the first name cañada is not submerged by reservoir of the same name. The second part, the mesa, is just to the east.

Rancho Ricon del Diablo

So named because is was near populations who had refused to be convert to Christianity, present-day Escondido.

Rancho Santa Maria de los Peñasquitos

Peñasquitos Canyon Preserve is the site of an important east-west passage along Poway-Peñasquitos Creek - while disrupted by subdivisions in the present-day city of Poway traces an old connection up the hill to the intersection of Poway Road and Route 67.

Waterways

We are completing a survey of miles of water used in the following applications.

Golf courses are listed under the river whose watershed they drain to, per the USGS Watershed Boundary Dataset. * closed or partly off the river

Agua Hedionda Creek

Dams

Golf Courses

Buena Vista Creek

Golf Courses

Escondido Creek

Dams

Golf Courses

Otay River

Dams

Wildlife Refuge

Golf Courses

Peñasquitos Creek

Dams

Golf Courses

Rose Creek

Golf Courses

Salt Creek

Golf Courses

The San Diego River valley looking south-west from above Santa Ysabel toward El Capitan Reservoir

The San Diego River looking south-west from above Santa Ysabel toward El Capitan Reservoir

San Diego River

Dams

Golf Courses

Nature Preserves

Industrial

Quary west of Old Mission Dam

Shopping Malls

Mission Gorge Rd and Cuyamaca St. Extended Million Valley Shopping Area

Easements and Access

San Dieguito River

Dams

Nature Preserves

Golf Courses

San Luis Rey River

Dams

Golf Courses

Nature Preserves

Easements and Access

Highways

State Route 76

Industrial

San Marcos Creek

Dams

Golf Courses

Santa Margarita River

Dams

Golf Courses

Santa Ysabel Creek

Dams

Shopping Malls

Westfield at North County

Preserves

Golf Courses

  Built Acre Flow sq acre miles % lowland banks Shed area

Sweetwater River

Dams

yracre/ft yracre/ftmi2xx%mi2
Loveland Reservoiryracre/ft yracre/ftmi2xx%mi2
Sweetwater Reservoiryracre/ft yracre/ftmi2xx%mi2
Palo Verde Damyracre/ft yracre/ftmi2xx%mi2

Golf Courses

yracre/ft yracre/ftmi2xx%mi2
Steele Canyon Golf Clubyracre/ft yracre/ftmi2xx%mi2
Singing Hills Golf Resort at Sycuanyracre/ft yracre/ftmi2xx%mi2
Cotton Wood Golf Clubyracre/ft yracre/ftmi2xx%mi2
Bonita Golf Courseyracre/ft yracre/ftmi2xx%mi2
Chula Vista Golf Course and Venueyracre/ft yracre/ftmi2xx%mi2
National City Golf Course*yracre/ft yracre/ftmi2xx%mi2

Shopping Malls

yracre/ft yracre/ftmi2xx%mi2
"Jamacha Junction" Mallyracre/ft yracre/ftmi2xx%mi2
Plaza Bonita Mallyracre/ft yracre/ftmi2xx%mi2
"Highland Avenue" Mallyracre/ft yracre/ftmi2xx%mi2

Cemetary

Wildlife Refuge

Industry

shipping freight at terminual with South Bay

Tecolote Creek

Golf Courses

Tijuana River

Dams

Golf Courses

Dam Construction
Old Mission Dam San Diego River 1816 —
Lake O'Neill Dam Santa Margarita River (offstream) 1883 1,395
Cuyamaca Dam San Diego River (Boulder Creek) 1887 11,740
Sweetwater Dam Sweetwater River 1888 27,689
Escondido Canal diversion dam San Luis Rey River 1895 —
Case Springs Dam San Onofre Creek 1900 86
Chollas Dam Chollas Creek 1901 167
Upper Otay Dam Otay River (Proctor Valley Creek) 1901 2,825
Morena Dam Tijuana River (Cottonwood Creek) 1912 50,206
Lake Hodges Dam San Dieguito River 1918 37,700
San Dieguito Dam Escondido Creek (tributary) 1918 883
Murray Dam San Diego River (Alvarado Creek) 1918 4,818
Savage Dam (Lower Otay) Otay River 1919 56,500
Corte Madera Dam Tijuana River (Pine Valley Creek) 1919 325
Barrett Dam Tijuana River (Cottonwood Creek) 1922 44,755
Henshaw Dam San Luis Rey River 1923 50,000
Wohlford Dam Escondido Creek 1924 6,950
Fairbanks Dam San Dieguito River (tributary) 1927 100
Upper 4S Ranch Dam San Dieguito River (Lusardi Creek) 1927 48
Wuest Dam McCain Creek 1928 280
Henry Jr. Dam Tijuana River (Pine Valley Creek) 1929 196
El Capitan Dam San Diego River 1934 112,800
Calavera Dam Agua Hedionda Creek (Calavera Creek) 1940 520
San Vicente Dam San Diego River (San Vicente Creek) 1943 245,000
Loveland Dam Sweetwater River 1945 25,400
San Marcos Dam (Lake San Marcos) San Marcos Creek 1946 480
Vail Dam Santa Margarita River (Temecula Creek) 1949 51,000
Sutherland Dam Santa Ysabel Creek 1954 29,000
Miramar Dam Peñasquitos Creek (Carroll Canyon) 1960 7,250
Chet Harritt Dam (Lake Jennings) San Diego River (Quail Canyon Creek) 1962 9,790
Maerkle Dam Agua Hedionda Creek (tributary) 1963 600
Dixon Dam Escondido Creek (tributary) 1970 2,500
Palo Verde Dam Sweetwater River 1970 1,000
Poway Dam Santa Ysabel Creek (Warren Canyon) 1971 3,300
Turner Dam San Luis Rey River (Moosa Canyon) 1971 2,000
Red Mountain Dam San Luis Rey River (Reche Creek) 1985 1,350
Ramona Dam Santa Ysabel Creek (Green Valley) 1988 12,200
Olivenhain Dam Escondido Creek (tributary) 2003 24,900

River is the watershed the dam drains to, with the stream it sits on in parentheses. Completion year and storage capacity are from the National Inventory of Dams; storage is the current maximum, so San Vicente reflects its 2014 raise. Old Mission Dam dates from 1813–1816. Lindo Lake in Lakeside is a natural lake with no dam. Click a column heading to sort, or a dam name to show it on the map.

Mines

698 mines and quarries in San Diego County: working and closed mines from the state's Mines Online, with the year of their latest report, and historic producing mines from the USGS Mineral Resources Data System. Production years appear where USGS recorded them; "documented" is the year of the earliest report USGS cites for the mine, often the 1963 county mineral survey, not the year it opened. Click a column heading to sort, or a mine name to show it on the map.
Buckman Pitdecomposed graniteActive (2025)
Canyon Rocksand and gravelActive (2025)
Carroll Canyonsand and gravelActive (2025)
Chula Vistasand and gravelActive (2025)
East County Sand Minesand and gravelActive (2025)
Hester's Granitesand and gravelActive (2025)
Highway 67 & Vigilante Road Pitsand and gravelActive (2025)
Jamacha Rock Quarrysand and gravelActive (2025)
Jeb Sand & Gravel Quarrysand and gravel, decomposed graniteActive (2025)
Rosemary's Mountain Quarrystone, sand and gravelActive (2025)
Superior Ready Mix - San Pasqual Quarrysand and gravelActive (2025)
Triple T Quarrysand and gravelActive (2025)
Turvey Dg Pitdecomposed granite, stone,fill dirtActive (2025)
Twin Oaks Quarry (Pka National Quarry)stoneActive (2025)
Warner Borrow Pitdecomposed graniteActive (2025)
Baxter Quarrysand and gravelIdle (2025)
Poway Facilitysand and gravelIdle (2025)
Slaughterhouse Canyonsand and gravelIdle (2025)
Tunnel Hill Pitfill dirtIdle (2025)
Willow Sand Resourcessand and gravelIdle (2025)
Allen Pitdecomposed graniteClosed and reclaimed (2003)
Ashland Granitedecomposed graniteClosed and reclaimed (1996)
Back Gate Pitdecomposed graniteClosed and reclaimed (2000)
Beyer Pitsand and gravelClosed and reclaimed (2011)
Border Highlands Pitsand and gravelClosed (2025)
Borrego Sand And Rock - Reclaimedsand and gravelClosed and reclaimed (2016)
Burnand Borrow Pitdecomposed graniteClosed and reclaimed (2007)
California Sand & Gravel, Inc.fill dirtClosed and reclaimed (1995)
Carroll Canyon Plantsand and gravelClosed and reclaimed (2022)
Channel Roadsand and gravelClosed (2025)
City Of Oceansidesand and gravelClosed (2025)
Coast Sand Companysand and gravelClosed and reclaimed (2008)
El Monte Pitsand and gravelClosed (2025)
Ennisssand and gravelClosed (2025)
Gene Taylor Materialssand and gravelClosed and reclaimed (1994)
Golden Chariotgold (placer)Closed and reclaimed (2000)
Harmonynot reportedClosed and reclaimed (2012)
J.W. Sand & Materials Inc.sand and gravelClosed and reclaimed (2011)
Jamul Quarrysand and gravelClosed and reclaimed (2004)
L.E. Morrisonsand and gravelClosed and reclaimed (1997)
La Posta Sand Pitdecomposed graniteClosed and reclaimed (1997)
Lakeside Land Co., Inc.sand and gravelClosed and reclaimed (2016)
Lakeside River Park Conservancysand and gravelClosed and reclaimed (2010)
Los Alamitos Borrow Pitsand and gravelClosed and reclaimed (1994)
Lynch Pit (Project)decomposed graniteClosed and reclaimed (1996)
Mccain Pitdecomposed graniteClosed and reclaimed (2011)
Miramarsand and gravelClosed (2025)
Mission Valley - Ex Fenton - Reclaimedsand and gravelClosed and reclaimed (2009)
Mission Valley - Reclaimedsand and gravelClosed and reclaimed (2014)
Mission Valley Rock Plant - Reclaimedsand and gravelClosed and reclaimed (2003)
Monte Vista Pitfill dirtClosed and reclaimed (2018)
Moretti-Mesa Grande B.P.decomposed graniteClosed and reclaimed (2005)
North Twin Oaks Valleysand and gravelClosed and reclaimed (2005)
Oceanside/CarlsbadstoneClosed and reclaimed (2015)
Olive Borrow Pitdecomposed graniteClosed and reclaimed (2012)
Pala Rock Plant (Sand)sand and gravelClosed and reclaimed (2005)
Ramona Borrow Pit And Landfilldecomposed graniteClosed and reclaimed (1993)
Rancho San Diego Golf Coursesand and gravelClosed and reclaimed (1999)
Rcp Pits 1,2,3, & 5 Inclusivesand and gravelClosed and reclaimed (2023)
Sanddunessand and gravelClosed and reclaimed (1998)
Sorrento Sand Co. Inc. - Reclaimedspecialty sandClosed and reclaimed (1998)
Sweetwater Reservoirsand and gravelClosed and reclaimed (1994)
Uclh San Marcos Minesand and gravelClosed and reclaimed (2017)
Valley Center Borrow PitstoneClosed and reclaimed (1994)
Woodward Pit - Reclaimedsand and gravelClosed and reclaimed (2015)
Wyroc Sycamore QuarrystoneClosed and reclaimed (2002)
A. B. C. Minesemiprecious gemstonePast producer1963
A.M.E. Quarrystone, crushed/brokenPast producer1981
Acme Truck Co. Pit No. 1stone, crushed/brokenPast producer1963
Acme Truck Co., Pit No. 2stone, crushed/brokenPast producer1963
Acme Truck Co.Pit #2graniteProducer, per USGS
Aguanga DistricttungstenProducer, per USGS1954
Allen Borrow Pitstone, crushed/brokenProducer, per USGS1991
Allied Granite QuarrygranitePast producer1981
American Mable & Granite WorksgraniteProducer, per USGS
American Marble and Granite WorksgranitePast producer1963
American Sand Co.sand and gravel, constructionPast producer
American Sand Co.sand and gravel, constructionPast producer1963
AtchisongraniteProducer, per USGS
Atkison Pitstone, crushed/brokenPast producer1990
Ballena Placer DepositsgoldPast producer1963
Banner Horseshore ProspectgoldProducer, per USGS
Bear DepositfeldsparProducer, per USGS
Beebe Hole Minegemstones, gem specimensProducer, per USGS1905
Beeler Canyon Sand and Gravel Co.sand and gravel, constructionPast producer
Beeler Canyon Sand and Gravel Co.sand and gravel, constructionPast producer1963
Ben Hur MinesilverPast producer1982
Beyer Pitsand and gravel, constructionPast producer1981
Beyer Pitsand and gravel, constructionPast producer1990
Black Canyon DepositfeldsparPast producer1963
Black Eagle MinegoldProducer, per USGS
Black Eagle MinegoldPast producer1963
Black Mountain GrouparsenicPast producer1963
Blue Bell DepositgemstoneProducer, per USGS
Blue Bell DeposittinPast producer1915
Bly Stone CostoneProducer, per USGS
Bly Stone Co. QuarrygraniteProducer, per USGS
Bly Stone Co. QuarrygranitePast producer1963
Bonsall Pitsand and gravel, constructionPast producer1990
Border Highlands Pitsand and gravel, constructionPast producer1981
Border Highlands Pitsand and gravel, constructionPast producer1990
Border Pitsand and gravel, constructionPast producer1979
Borrego SpringsgeothermalProducer, per USGS1939
Borrow Pitsand and gravel, constructionPast producer
Borrow Pitsand and gravel, constructionPast producer
Borrow Pitssand and gravel, constructionPast producer
Boulder Creek GroupgoldProducer, per USGS
Boulder Creek GroupgoldPast producer1963
Bour MinemolybdenumProducer, per USGS1917
Brown Trucking Dg Pitstone, crushed/brokenPast producer
Bryant, D. G., San Marcosstone, crushed/brokenPast producer1963
Buckthorn DepositfeldsparProducer, per USGS
Buckthorn DepositfeldsparPast producer1963
Burnand Borrow PitgraniteProducer, per USGS1991
C B Grove Deposit--Pit #1graniteProducer, per USGS
C B Grove Deposit--Pit No. 1stone, crushed/brokenPast producer1963
C. B. Grove Pit No. 2stone, crushed/brokenPast producer1963
C.B.Grove Pit #2graniteProducer, per USGS
Cablesemiprecious gemstonePast producer1963
Calac ProspectgemstonePast producer1963
Calavera Quarrystone, crushed/brokenPast producer1963
Calif Wire Sawyer Corp.graniteProducer, per USGS
Calif Wire Sawyer Corp.stone, crushed/brokenPast producer1963
California Salt Co.saltPast producer1963
Caltrans Quarrystone, crushed/brokenPast producer1963
Cameron and DeeringgraniteProducer, per USGS
Cameron Corners Pitstone, crushed/brokenProducer, per USGS1991
Cameron-Deering QuarriesgranitePast producer1963
Camp Pendleton Quarrysand and gravel, constructionPast producer
Camp Pendleton Quarrysand and gravel, constructionPast producer1963
Campo Milling Corp.sand and gravel, constructionPast producer
Campo Milling Corp.stone, crushed/brokenPast producer1963
Canyon Rock Co. Plant and Quarrysand and gravel, construction, stone, crushed/brokenPast producer1963
Canyon Rock Co.Plant and QuarrystoneProducer, per USGS
Carlsbad Pitstone, crushed/brokenPast producer1981
Carlsbad Rock and Sand Co.sand and gravel, constructionPast producer
Carlsbad Rock and Sand Co.sand and gravel, construction, stone, crushed/brokenPast producer1963
Carmean QuarrystoneProducer, per USGS
Carmean Quarrystone, crushed/brokenPast producer1963
Carrol Canyon Pitsand and gravel, constructionPast producer1981
Carroll Canyon Pitsand and gravel, constructionPast producer1990
Carson Ranch Placer ClaimgoldProducer, per USGS
Carson Ranch Placer ClaimgoldPast producer1963
Cassiterite Placer ClaimtinPast producer1963
Charles G. Moore QuarrygranitePast producer1963
Chieftan MinegoldProducer, per USGS
Chieftan MinegoldPast producer1963
Chollas Valley Salt Co.saltPast producer1963
Chula Vista EvaporatorssaltPast producer1963
Cincinnati Belle MinegoldProducer, per USGS
Cincinnati Belle MinegoldPast producer1963
Circle Group DepositvermiculitePast producer1963
Clark Extension Prospectsemiprecious gemstonePast producer1963
Clark Minequartz, gemstoneProducer, per USGS
Clark MinegemstonePast producer1963
Clemens Granite Co. QuarrygranitePast producer1950
Cleveland-Pacific Minegold, silverProducer, per USGS
Cleveland-Pacific MinegoldPast producer1963
Clover Flat Pitsand and gravel, constructionPast producer
Coast Sand Pitsand and gravel, constructionProducer, per USGS1990
Coleman Creek Placer DepositsgoldProducer, per USGS1939
Coleman Creek Placer DepositsgoldPast producer1939
Conrock Company Lakeside Plantsand and gravel, constructionPast producer
Continental Granite Pitstone, crushed/brokenPast producer1990
Coston Const Co.graniteProducer, per USGS
Coston Construction Co.stone, crushed/brokenPast producer1963
Cota Minesemiprecious gemstonePast producer1963
Cottonwood Creek Pitsand and gravel, constructionPast producer1990
Cottonwood Golf Course Pitsand and gravel, constructionPast producer1990
Cowdrey E. E.stone, crushed/brokenPast producer1963
Coyote Mtn Gypsum & Ssulfur, gypsumProducer, per USGS
Crescent MinegoldProducer, per USGS
Crown Point MinetungstenPast producer1963
Crown Point MinetungstenPast producer1963
Crystal Gem MinegemstoneProducer, per USGS
Crystal Silica CompanysilicaProducer, per USGS
Crystal Silica CompanysilicaPast producer1963
D G Bryant QuarrygraniteProducer, per USGS
Dairymart Pitsand and gravel, constructionPast producer1981
Daleycopper, silverPast producer1915 , 1916 - 1919 (?)1948
Daley MinecopperPast producer1963
Dave Martin Prospect PitgraniteProducer, per USGS
Decomposed Granite PitgraniteProducer, per USGS
Decomposed Granite PitgranitePast producer1963
Deer Park Depositlimestone, dimensionPast producer1963
Dehesa Operationsand and gravel, constructionPast producer
Dehesa Operationsand and gravel, constructionPast producer1963
Descanso Minegold, silverProducer, per USGS
Descanso MinegoldPast producer1963
Descanso QuarryquartzPast producer1981
Desert Star Mining CotungstenPast producer1963
Dg Pitstone, crushed/brokenPast producer1963
Donohoe MinegoldProducer, per USGS1939
Donohoe MinegoldPast producer1963
Dorothy and Pearl ClaimsclayPast producer1963
Dyche Valley MinetungstenPast producer1943-1945, mid 1950's1963
Dyche Valley MinetungstenPast producer1963
E.E.Cowdrey PitgraniteProducer, per USGS
Eagle MinegoldProducer, per USGS
Eagle MinegoldPast producer1963
Eagle Nest Minegold, silverProducer, per USGS
Eagle Nest MinegoldPast producer1963
Easy GrouptungstenPast producer1963
Easy GrouptungstenPast producer1963
El Cajon Kaolin DepositclayPast producer1925
El Cajon Sand and Gravel Co.sand and gravel, constructionPast producer
El Cajon Sand and Gravel Co.sand and gravel, constructionPast producer1963
El Capitan Quarrystone, crushed/brokenPast producer1963
El Dorado ClaimgoldPast producer1963
El Granito Mineral SpringsgeothermalProducer, per USGS1939
El Monte Pitsand and gravel, constructionPast producer1981
El Monte Sand Pitsand and gravel, constructionPast producer1990
Elder Canyon Depositssemiprecious gemstonePast producer1963
Elevada & Aguajito GroupgoldProducer, per USGS
Elevada and Aguajito GroupgoldPast producer1963
Ella MinegoldProducer, per USGS
Ella Mine GroupgoldPast producer1963
Empire Apex ClaimgoldProducer, per USGS
Encinitascopper, leadPast producer1905 , 1915 - 19171948
Encinitas MinecopperPast producer1963
Ennis Pitsand and gravel, constructionPast producer1990
Escondido Quarries, Inc.graniteProducer, per USGS
Escondido Quarries, Inc.granitePast producer1963
Escondido Rock and Sand CograniteProducer, per USGS
Escondido Sand and Gravel Workssand and gravel, constructionPast producer1963
Esmeralda MinegemstonePast producer1963
Evans Point DepositstonePast producer
Faubus Pitsand and gravel, constructionPast producer1990
Felden DeposittungstenProducer, per USGS1962
Fellows and Clutter QuarrygraniteProducer, per USGS
Fellows and Clutter Quarrystone, crushed/brokenPast producer1963
Fenton Material Depositsand and gravel, constructionPast producer
Fletcher QuarriesstoneProducer, per USGS
Fletcher Quarriesstone, crushed/brokenPast producer1963
Foster QuarrystoneProducer, per USGS
Foster Quarrystone, crushed/brokenPast producer1963
Foster QuarrygranitePast producer1963
Four-Gee DepositsaluminumPast producer1963
Frank A.Salmons Claim Green CabingemstoneProducer, per USGS
French Petesemiprecious gemstonePast producer1959
Friars Road Pitsand and gravel, constructionPast producer1963
Galbrath QuarrygraniteProducer, per USGS
Galbrath QuarrygranitePast producer1963
Gem Star MinegemstonePast producer1963
Gem StarloughbaughminegemstoneProducer, per USGS
Genger Pitstone, crushed/brokenPast producer1990
Gibson DepositquartzProducer, per USGS
Gibson DepositsilicaPast producer1963
Gladding Mcbean & Co. MineclayPast producer1963
Gold Bellar # 1 & 4 ClaimsgoldProducer, per USGS
Gold Chief ClaimgoldPast producer1939
Gold Cross GroupgoldProducer, per USGS1939
Gold Cross GroupgoldPast producer1939
Gold King GroupgoldProducer, per USGS
Gold King GroupgoldPast producer1963
Gold Standard GroupgoldPast producer1963
Golden Chariotgold, telluriumProducer, per USGS1939
Golden Chariot MinegoldPast producer1939
Golden Co. Inc.stone, crushed/brokenPast producer1963
Golden Co.Inc.stoneProducer, per USGS
Golden Gem GroupgoldProducer, per USGS
Golden Gem GroupgoldPast producer1958
Golden Sugar MinegoldProducer, per USGS
Granite Mountain MinegoldProducer, per USGS
Granite Mountain MinegoldPast producer1963
Grapevine Star MinegoldProducer, per USGS1913
Grapevine Star MinegoldPast producer1913
Gravel Pitsand and gravel, constructionPast producer
Gravel Pitsand and gravel, constructionPast producer
Gravel Pitsand and gravel, constructionPast producer
Gravel Pitsand and gravel, constructionPast producer
Gravel Pitsand and gravel, constructionPast producer
Gravel Pitsand and gravel, constructionPast producer
Gravel Pitsand and gravel, constructionPast producer
Gravel Pitsand and gravel, constructionPast producer
Gravel Pitsand and gravel, constructionPast producer
Green Ledge Minesemiprecious gemstonePast producer1963
Greenstone QuarrystoneProducer, per USGS
Greenstone Quarrystone, crushed/brokenPast producer1963
Grey Pitsand and gravel, constructionPast producer1981
Gross Sand Depositsand and gravel, constructionPast producer
Gross Sand Depositsand and gravel, constructionPast producer1963
H W Rohl Depositsand and gravel, constructionPast producer
Haborlite CorporationperlitePast producer1963
Harder Ranch MinegoldProducer, per USGS
Harper Ranch MinegoldPast producer1963
Harris DepositaluminumProducer, per USGS
Harris Deposittalc-soapstonePast producer1963
Hatfield Creek QuarrystoneProducer, per USGS
Hatfield Creek Quarrystone, crushed/brokenPast producer1963
Helix Pitsand and gravel, constructionPast producer1981
Helvetia MinegoldProducer, per USGS
Helvetia MinegoldPast producer1963
Henderson MilltungstenPast producer1963
Hercules Prospectsemiprecious gemstonePast producer1939
Hester's Granite Pitstone, crushed/brokenPast producer1963
Hesters Granite PitgraniteProducer, per USGS
Hi-Hope Ranch Pitstone, crushed/brokenPast producer1990
Hidden TreasuregoldProducer, per USGS
High Peak MinegoldProducer, per USGS1939
High Peak MinegoldPast producer1939
Hillside Materialsstone, crushed/brokenPast producer1963
Hillside Materials DepositgraniteProducer, per USGS
Hillside MinegoldProducer, per USGS
Hilton DepositcalciumProducer, per USGS
Hilton DepositcalciumPast producer1963
Himalaya Minesemiprecious gemstonePast producer1963
Homestake ClaimgoldProducer, per USGS
Homestore ProspectgemstoneProducer, per USGS
HooverfeldsparPast producer1963
Hoover Lakeside,TunnergemstoneProducer, per USGS
Hoover Lakeside,Tunner DepositfeldsparProducer, per USGS
Hubble WeaverdepositstoneProducer, per USGS
Independent Stone Co QuarrystoneProducer, per USGS
Independent Stone Co.sand and gravel, constructionPast producer1963
Independent Stone Co. Quarrystone, crushed/brokenPast producer1963
Ireys Black Granite DepositgranitePast producer1963
Jacumba Hot SpringsgeothermalProducer, per USGS1939
Jamacha Sand Plantsand and gravel, constructionPast producer1963
Jamul Quarrystone, crushed/brokenProducer, per USGS1991
Jamul Ranch Depositlimestone, generalPast producer1963
Jamuljamul Portland Cement Colimestone, generalPast producer
John Knox DepositgraniteProducer, per USGS
John Stridsberg QuarriesgranitePast producer1963
John Stridsbery QuarriesgraniteProducer, per USGS
Johnston's MinegoldPast producer1913
Judson Ranch DepositmolybdenumPast producer1963
JuliangoldProducer, per USGS
Jumper Mine HussayhamdagoldProducer, per USGS
Kelly Ranch MineclayPast producer
Kelly Ranch Minestone, dimensionPast producer1963
Kentuck SouthgoldProducer, per USGS
Kentucky Mine GroupgoldPast producer1939
Kentucky S GroupgoldProducer, per USGS1939
Keystone PilotgoldProducer, per USGS
Kitchen Creek/I8 Pitsand and gravel, constructionPast producer1990
Knox, John, Vistastone, crushed/brokenPast producer1963
Kuhnis MinegoldPast producer1963
L. E. Morrison Sand Plantsand and gravel, constructionPast producer1990
La Jolla Clay Products Co.clayPast producer
La Jolla Clay Products Co.clayPast producer1963
La Posta Sand Pitsand and gravel, constructionProducer, per USGS1991
Laguna Mtns PlacerstinPast producer1963
Lake Hodges Pitsand and gravel, constructionPast producer1990
Lake Wohlford Road Pitstone, crushed/brokenPast producer1990
Lakeside Lime and Marl Depositlimestone, generalPast producer1925
Lakeside Pitsand and gravel, constructionPast producer1981
Lakeside Pitsand and gravel, constructionPast producer1981
Lakeside West Pitsand and gravel, constructionPast producer1981
Langer DepositfeldsparPast producer1963
Last Chance MinegoldProducer, per USGS
Last Chance MinegoldPast producer1963
Last DollartungstenPast producer1963
Last Dollar ProspecttungstenPast producer1963
Lee, Ted, Vistastone, crushed/brokenPast producer1963
Lehnberg QuarrygranitePast producer1963
Linda Vista MineclayPast producer1963
Little Randsburg ProspecttungstenPast producer1963
Little Three Minesemiprecious gemstonePast producer1963
Live Oak Grouptungsten, goldPast producer1963
Live Oak GrouptungstenPast producer1963
Long Valley Placer DepositsgoldPast producer1963
Lookout GroupgoldProducer, per USGS
Lookout ProjectgemstoneProducer, per USGS
Lookout Prospectsemiprecious gemstonePast producer1963
Los Penasquitos Canyon Depositsand and gravel, constructionPast producer1963
Los Penasquitos Canyon Depositssand and gravel, constructionPast producer
Lost Valley Truck Trail Minesemiprecious gemstonePast producer1963
Lowrey DepositquartzProducer, per USGS
Lowrey DepositquartzPast producer1963
Lucky Chuck MinegoldProducer, per USGS
Lucky Chuck MinegoldPast producer1963
Lucky Strike MinegoldProducer, per USGS
Lucky Strike MinegoldPast producer1963
Lynch Prospectstone, crushed/brokenPast producer1990
Mack MinegemstoneProducer, per USGS
Mack MinegemstonePast producer1963
Madden GroupgoldProducer, per USGS
Magee Quarrystone, dimensionPast producer1963
Majestic GroupgoldProducer, per USGS
Majestic Mine GroupgoldPast producer1963
Maple Lode Minesemiprecious gemstonePast producer1963
Margarita MinegemstonePast producer1963
Marron Bros. Inc.stone, crushed/brokenPast producer1963
Marron Quarrystone, crushed/brokenPast producer1963
Marrow QuarrystoneProducer, per USGS
Mccain Borrow Pit #790graniteProducer, per USGS1991
Mcfall MinegarnetPast producer1963
Mcgee QuarrystoneProducer, per USGS
Mcginty Mountain DepositfeldsparPast producer1963
Mcginty Mtn Deposit Dehesa CorntyfeldsparProducer, per USGS
Mcgrath Dg Pit No. 2stone, crushed/brokenProducer, per USGS1963
Mcgrath Pit #2graniteProducer, per USGS
Mcgrath Pit No. 1stone, crushed/brokenPast producer1963
Mcguffie Foundation Depositstone, crushed/brokenProducer, per USGS
Mcguffie Foundation DepositpumicePast producer1963
McKoon QuarrygraniteProducer, per USGS
McKoon QuarrygranitePast producer1963
Meadowlark Ranch Quarrystone, crushed/brokenPast producer1963
Melba GroupgoldProducer, per USGS
Merrick Kaolin DepositkaolinPast producer1963
Mesa Grande Minesemiprecious gemstonePast producer1963
Metal Mountain MinetungstenPast producer1954-19561963
Metal Mountain MinetungstenPast producer1963
Meyer Granite QuarriesgraniteProducer, per USGS
Mica Gem GroupmicaPast producer1963
MinegoldProducer, per USGS
Miramar Pit and Plantsand and gravel, constructionPast producer
Mission Gorge Pitsand and gravel, constructionPast producer1990
Mission Gorge Pitsand and gravel, constructionPast producer1981
Mission Gorge QuarrydolomiteProducer, per USGS1991
Mission Minegemstone, micaProducer, per USGS
Mission MinegemstonePast producer1963
Mission Road Pitsand and gravel, constructionPast producer1990
Mission Sand Co.sand and gravel, constructionPast producer
Mission Sand Co. Nelson and Sloansand and gravel, constructionPast producer1963
Mission Valley Operationsand and gravel, constructionPast producer
Mission Valley Operationsand and gravel, constructionPast producer1963
Mission Valley Operation Woodwardsand and gravel, constructionPast producer1963
Mission Valley Pitsand and gravel, constructionPast producer1981
Mission Valley Pitsand and gravel, constructionPast producer1963
Monarch Materialssand and gravel, constructionPast producer
Monarch Materials Co.sand and gravel, constructionPast producer1963
Montana GroupgoldProducer, per USGS
Monte Vista PitgraniteProducer, per USGS1991
Montezuma Group MinegoldProducer, per USGS1958
Montezuma MinegoldPast producer1963
Moore DepositfeldsparProducer, per USGS
Moore DepositfeldsparPast producer1925
Moore PitgraniteProducer, per USGS
Moore Quarry Charles G.graniteProducer, per USGS
Moretti Pitstone, crushed/brokenProducer, per USGS1991
Mosto Pitsand and gravel, constructionPast producer1981
Mosto Ranch DepositclayPast producer1963
Murray Canyon Pitsand and gravel, constructionProducer, per USGS1990
Murray Canyon Plantsand and gravel, constructionPast producer
Murray Canyon West Pitsand and gravel, constructionPast producer1981
National Blue Granite QuarrygranitePast producer1963
National Brick CompanyclayPast producer1963
National QuarriesgranitePast producer1963
National,Quarriesjohnson BrothersgraniteProducer, per USGS
Navajo Depositcrushed stoneProducer, per USGS
Nelson & Sloan #5 Operationsand and gravel, constructionPast producer
Nelson & Sloan No. 5 Operationsand and gravel, constructionPast producer1963
Nelson & Sloan Pitsand and gravel, constructionPast producer
Nelson & Sloan Pitsand and gravel, constructionPast producer
Nelson & Sloan Pitsand and gravel, constructionPast producer1963
Nelson and Sloan Pit No. 12sand and gravel, constructionPast producer1990
North Star GroupgoldProducer, per USGS
North Star MinegoldProducer, per USGS
North Star MinegoldPast producer1958
North Star MinesgemstoneProducer, per USGS
O'CallaghanclayPast producer
Olive Street PitgraniteProducer, per USGS1991
Oreiflamme MinegoldProducer, per USGS
Oriflamme MinegoldPast producer1963
Oro Fino El Diablo MinegoldProducer, per USGS
Oro Fino MinegoldPast producer1963
Otay Bentonite DepositbentonitePast producer1960
Otay Operationsand and gravel, constructionPast producer
Otay Operationsand and gravel, constructionPast producer1963
Otay Operation #1sand and gravel, constructionPast producer
Otay Operation No. 1sand and gravel, constructionPast producer1963
Otay Operation No. 3sand and gravel, constructionPast producer1963
Otay Ranch Pitsand and gravel, constructionPast producer1963
Owensgold, copper, silverPast producer1890 - 19101948
Owens MinegoldPast producer1963
Owens Old Owensminegold, copper, silverProducer, per USGS
Pacific Clay Products MineclayPast producer1963
Pacific MinefeldsparPast producer1963
Pacific Mine CampofeldsparProducer, per USGS
Packrat Minegemstones, gem specimensProducer, per USGS1905
Padlock ClaimgoldProducer, per USGS
Padlock MinegoldPast producer1958
Pala Chief GroupgemstoneProducer, per USGS
Pala Chief GroupgemstonePast producer1963
Pala DepositgranitePast producer1963
Pala Districtniobium (columbium), gemstone, tantalum, beryllium, lithiumProducer, per USGS1951
Pala Pitsand and gravel, constructionProducer, per USGS1990
Pala Pitsand and gravel, constructionPast producer1990
Pala Plantsand and gravel, constructionPast producer1979
Pala Sand Plantsand and gravel, constructionPast producer
Palo Verde Lake Pitsand and gravel, constructionPast producer1990
PalomartungstenPast producer1943-19441962
Pankey Pitsand and gravel, constructionPast producer1981
Parsons MinegoldPast producer1963
Parsonsorange BlossomminegoldProducer, per USGS
Patterson Trucking Co.stone, crushed/brokenPast producer1963
Pauma Valley Pitsand and gravel, constructionPast producer1990
PawneetungstenPast producer1943
Pawnee MinetungstenPast producer1963
Payne Minesemiprecious gemstonePast producer1963
Payoff MinetungstenPast producer19551963
Payoff MinetungstenPast producer1963
Pearson DepositfeldsparProducer, per USGS
Pete Matson QuarrygraniteProducer, per USGS
Pete Matson QuarrygranitePast producer1963
Peters, W. H., Vistastone, crushed/brokenPast producer1963
Phase 1 Pitsand and gravel, constructionPast producer1981
Phase 2 Pitsand and gravel, constructionPast producer1981
Phase 3 Pitsand and gravel, constructionPast producer1981
Phase 5 Pitsand and gravel, constructionPast producer1981
Phillips MinegoldPast producer1963
Phillips Mine Chase RanchgoldProducer, per USGS
Pioneer Deposittalc-soapstonePast producer1963
Pioneer GroupgoldPast producer1963
Pioneer Minetalc-soapstoneProducer, per USGS1950
PitgraniteProducer, per USGS
Pomona Granite Co. QuarriesgranitePast producer1963
Pomona Granite Co.QuarriesgraniteProducer, per USGS
Ponto Beach Depositsand and gravel, constructionPast producer1963
Ponto Beach Deposit Abizaidstone, crushed/brokenProducer, per USGS
Portuguese FlatsaltPast producer1963
Poway Operationsand and gravel, constructionPast producer
Poway Operationsand and gravel, constructionPast producer1963
Poway Pitstone, crushed/brokenPast producer1963
Pride of the West MinegoldProducer, per USGS
Pride of the West MinegoldPast producer1963
Prosperity ProspectgoldPast producer1951
Quarrystone, crushed/brokenPast producer1906
R. C. P. Pit No. 1sand and gravel, constructionPast producer1990
R. C. P. Pit No. 2sand and gravel, constructionPast producer1990
R. C. P. Pit No. 3sand and gravel, constructionPast producer1981
R. C. P. Pit No. 5sand and gravel, constructionPast producer1990
Ranchito MinegoldProducer, per USGS
Ranchito MinegoldPast producer1958
Raymond Mcfilvray Corp. QuarrygranitePast producer1963
Rcp Pit and Millsand and gravel, constructionPast producer
Rcp Pit and Millsand and gravel, constructionPast producer1981
Rcp Pit No. 2sand and gravel, constructionPast producer1981
Ready ReliefgoldProducer, per USGS
Ready Relief MinegoldPast producer1958
Red Rose QuarryquartzProducer, per USGS
Red Rose Quarrystone, dimensionPast producer1963
RedmangoldProducer, per USGS
Richardson PitgraniteProducer, per USGS1991
Rincon Pegmatite Districtgemstone, niobium (columbium), beryllium, tantalumProducer, per USGS1951
Risley Burroughs DepositquartzProducer, per USGS
Risley DepositsilicaPast producer1963
Riverford West Pitsand and gravel, constructionPast producer1981
Roberts and PeelerstrontiumPast producer1963
Roberts and Peelerpeeler & RobertsstrontiumProducer, per USGS
Rock Mountain Quarrystone, crushed/brokenPast producer1990
Rohl, H. W. Co.sand and gravel, constructionPast producer1963
Rose Quartz GroupgoldProducer, per USGS
Rose Quartz GroupgoldPast producer1963
Rose Quartz Minegold, silverProducer, per USGS1961
Rose Quartz MinegoldPast producer1961
Rose Quartz MinequartzPast producer1963
Royal MinelithiumPast producer1925
Ruby ClaimgoldProducer, per USGS
Ruby GroupberylliumProducer, per USGS
Ruby GroupberylliumPast producer1963
San Clemente Projectsand and gravel, constructionPast producer
San Diego Cement Co. Operationstone, crushed/brokenPast producer1963
San Diego Cement Co.OperationgraniteProducer, per USGS
San Diego MinegoldPast producer1963
San Diego Molding Sand Co.sand and gravel, constructionPast producer1963
San Diego QuarrygranitePast producer1981
San Diego Stone Co. Quarrystone, crushed/brokenPast producer1963
San Diego Stone Co.QuarrystoneProducer, per USGS
San Felipe MinegoldProducer, per USGS
San Luis Rey River Pitsand and gravel, constructionPast producer1990
San Marcos PitgraniteProducer, per USGS
San Marcos Pitstone, crushed/brokenPast producer1963
San Marcos Quarrysand and gravel, constructionProducer, per USGS1990
San Pasqual PitgraniteProducer, per USGS
San Pasqual Pitsand and gravel, constructionPast producer1981
San Pasqual Pitstone, crushed/brokenPast producer1963
San Pasqual Pit and Millstone, crushed/brokenPast producer1953 to at least 19581963
San Pedro Minesemiprecious gemstoneProducer, per USGS1993
San Vincente Valley DepositsgoldPast producer1963
Sand Pitsand and gravel, constructionPast producer
Sand Pitsand and gravel, constructionPast producer1963
Santee Materialssand and gravel, constructionPast producer1963
Schier Clay DepositclayPast producer1963
Schley GroupgoldProducer, per USGS
Shenandoah MinegoldProducer, per USGS
Shenandoah MinegoldPast producer1963
Sierra Sand Plantsand and gravel, constructionPast producer
Sim J. Harris Rock Plantsand and gravel, constructionPast producer1981
Simpson Pirnie Granite Co.graniteProducer, per USGS
Simpson-Pirnie Granite Co.granitePast producer1963
Slaughter House Canyonsand and gravel, constructionPast producer
Slaughterhouse Canyon Pitsand and gravel, constructionPast producer1981
Sloan Canyon Pitsand and gravel, constructionPast producer1990
Sloan Canyon Sand Pitsand and gravel, constructionPast producer1981
Smith Construction Co. Depositsand and gravel, constructionPast producer1963
Sorrento Brick and Clay Prod.clayPast producer1963
Sorrento Sand Co Depositsand and gravel, constructionPast producer
Sorrento Sand Co.sand and gravel, constructionPast producer1963
Sorrento Sand Pitsand and gravel, constructionPast producer1990
South Coast Asphalt Quarrystone, crushed/brokenPast producer1990
South Coast Pitsand and gravel, constructionPast producer1981
South HubbardgoldProducer, per USGS
Southern Calif Granite Co QuarryrograniteProducer, per USGS
Southern Calif Granite Co. QuarrygranitePast producer1950
Spanish Bayonet DepositfeldsparProducer, per USGS
Spanish Bayonet DepositfeldsparPast producer1951
Spar King DepositfeldsparProducer, per USGS
Spar King DepositfeldsparPast producer1963
Standard Oil MinebentonitePast producer1963
Stewart & Other Mineslithium, bismuthProducer, per USGS1962
Stewart Minesemiprecious gemstonePast producer1990
Stewart MinegemstonePast producer1963
Stewart Pegmatiteniobium (columbium), tantalum, lithiumProducer, per USGS1951
Stoddard Borrow Pitstone, crushed/brokenProducer, per USGS1963
Stone QuarrystoneProducer, per USGS
Stoner ProspectgoldProducer, per USGS
Stonewall JacksongoldProducer, per USGS
Stonewall MinegoldPast producer1951
Summit and Summit ExtensiongoldProducer, per USGS
Summit and Summit Extension ClaimsgoldPast producer1963
Sundown MinetungstenPast producer1941-1954 intermittently1962
Surprise Minesemiprecious gemstonePast producer1925
Sweetwater CreeksaltPast producer1963
Sweetwater Reservoir Sand Pitsand and gravel, constructionPast producer1990
Sweetwater Sand Co.sand and gravel, constructionPast producer1963
Sweetwater Sand Depositsand and gravel, constructionPast producer
Sycamore Avenue Quarrystone, crushed/brokenPast producer1990
Taylor Pitsand and gravel, constructionPast producer1990
Ted Lee DepositgraniteProducer, per USGS
Telluride Group Triluridegold, leadProducer, per USGS
Teuscher ProspecttungstenPast producer1963
Teuscher ProspecttungstenPast producer1963
Texas QuarriesgraniteProducer, per USGS
Texas Quarries QuarrygranitePast producer1963
The Noble MinesgoldProducer, per USGS
The Noble MinesgoldPast producer1963
Thing Valley Road Pitsand and gravel, constructionPast producer1990
Tom Scott MinegoldProducer, per USGS
Tom Scott MinegoldPast producer1963
Tourmaline King Pegmatitetantalum, lithium, gemstoneProducer, per USGS1951
Trail MinegemstonePast producer1963
Trask Minesemiprecious gemstonePast producer1963
Tres Amigos MinegoldProducer, per USGS
Tres Amigos MinegoldPast producer1963
Ttt Quarrystone, crushed/brokenPast producer1990
Twin Oaks Quarrystone, crushed/brokenPast producer1990
U. S. Silica Pitsand and gravel, constructionPast producer1990
Undetermined ProspectgoldProducer, per USGS
Union Brick Co. Mine, East PitclayPast producer1963
Union Brick Co. Mine, North PitclayPast producer1963
Union Brick Company Mine, West PitclayPast producer1963
Unnamed Borrow Pitsand and gravel, constructionPast producer
Unnamed Borrow Pitsand and gravel, constructionPast producer
Unnamed Borrow Pitsand and gravel, constructionPast producer
Unnamed Gravel Pitsand and gravel, constructionPast producer
Unnamed Gravel Pitsand and gravel, constructionPast producer
Unnamed Quarriessand and gravel, constructionPast producer
Unnamed QuarrystonePast producer
Unnamed QuarrystonePast producer
V. R. Dennis Sand Pitsand and gravel, constructionPast producer1963
Valley Center Borrow PitgraniteProducer, per USGS1991
Van Deventer QuarrygraniteProducer, per USGS
Van Deventer W.E. QuarrygranitePast producer1963
Van Wert MinegoldPast producer1963
Van Wert Van Wirt MinegoldProducer, per USGS
Vandegrift Boulevard Pitstone, crushed/brokenPast producer1990
Vanderburg - Katerina Pegmatiteniobium (columbium), tantalum, lithium, gemstoneProducer, per USGS1951
Verruga Depositstone, marble, dimensionProducer, per USGS
Verruga DepositstonePast producer1958
Victor MinegemstoneProducer, per USGS
Victor MinegemstonePast producer1963
Viejas Mt. ProspectgoldPast producer1963
Viejas Mtn ProspectgoldProducer, per USGS
Vista Black Granite QuarrygraniteProducer, per USGS
Vista Black Granite QuarrygranitePast producer1963
W H Peters DepositgraniteProducer, per USGS
Walker DepositquartzProducer, per USGS
Walker DepositquartzPast producer1925
Ward and Williams DepositfeldsparProducer, per USGS
Ward and Williams DepositfeldsparPast producer1963
Warlock GroupgoldProducer, per USGS
Warlock Mine GroupgoldPast producer1958
Warner Borrow PitgraniteProducer, per USGS1991
Warners Hot SpringsgeothermalProducer, per USGS1939
Washington MinegoldProducer, per USGS
Washington MinegoldPast producer1963
Waterman Granit Co QuarrygraniteProducer, per USGS
Waterman Granite Co. QuarrygranitePast producer1963
Weaver Depositcrushed stoneProducer, per USGS
Weaver DepositstoneProducer, per USGS
Weaver Depositstone, crushed/brokenPast producer1963
Weir Pitsand and gravel, constructionPast producer1990
White Butte DepositquartzProducer, per USGS
White Butte DepositsilicaPast producer1963
White Cap Blockmandepositlimestone, generalPast producer
White Cap Depositlimestone, generalPast producer1963
White Queensemiprecious gemstoneProducer, per USGS1993
White Rose DepositfeldsparPast producer1963
Woodward Base of Operationssand and gravel, constructionPast producer
Woodward San Pasqual Operationsand and gravel, constructionPast producer1963
Woodward Sand Co San Pasqual Operasand and gravel, constructionPast producer
Woodward Sand Plantsand and gravel, constructionProducer, per USGS1963
Wyroc Plantsand and gravel, constructionPast producer1979
You Bet GroupgoldProducer, per USGS
Zinniger Sand Plantsand and gravel, constructionPast producer1963

Fire History