Browse mineral resources

Hayes Ranch Deposit

Occurrence • Magnesite

Dyer Prospect

Occurrence •

Collins Deposit

Occurrence • Limestone, General

Reay Deposit

Occurrence •

Taylor and Pitcher

Producer • Manganese

Winship Properties

Prospect • Manganese

Nelson Bailey Mine, Newhall

Producer • Manganese

Chaney Winship-Doak, Winship-Donovan

Producer • Manganese

Beraudiere

Producer • Manganese

Jumbo Prospect

Occurrence •

Corral Hollow

Producer • Manganese

Clark Claim Vernon

Producer • Chromium

Cedar Claim

Occurrence • Chromium

Manzanita Grove

Occurrence • Chromium

Pine Grove

Occurrence • Chromium

Unidentified Prospects

Occurrence • Chromium

Cedar Mountain

Producer • Magnesite

Crosby Prospects

Occurrence •

Draghi

Producer • Chromium

Section 14

Producer • Manganese

Winship Properties

Prospect •

Bartlett

Producer • Manganese

Winship Properties

Occurrence • Manganese

Unknown

Occurrence • Stone

Winship Properties

Occurrence • Magnesite

Unknown

Occurrence • Mercury

Freitas Prospect

Occurrence •

Hearst

Occurrence • Manganese

Winegar Deposit

Producer • Manganese

Wolfe and Aitkin Lease

Occurrence •

Standard Magnesite Co

Producer • Manganese

Winship Properties

Occurrence • Manganese

King Claim

Occurrence • Magnesite

Foscilina

Producer • Manganese

Bant* Camp Deposit

Occurrence • Magnesite

Pleasonton Deposit

Producer • Limestone, General

Alma

Occurrence • Sulfur-Pyrite, Copper, Silver

John D. Hoff Asbestos Co

Producer • Asbestos

Mclaughlin Lithograph-Stone Quarry

Occurrence • Limestone, General

Gallagher Deposit

Producer • Manganese

Graves Claims

Producer • Manganese

Alma

Past Producer • Copper

Name Unknown

Occurrence •

Newman Mine

Past Producer • Chromium

Bartlett

Past Producer • Manganese

Gravel Pit

Past Producer • Sand and Gravel, Construction

Menden

Producer • Chromium

Morton Salt Co.

Producer • Halite

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Quarry

Past Producer • Sand and Gravel, Construction

Alum

Past Producer • Sulfur-Pyrite, Copper, Silver

Quarry

Producer • Stone

Quarry

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Clay Pit

Past Producer • Clay

La Vista Quarry and Mill

Producer • Stone

Quarry

Past Producer • Sand and Gravel, Construction

Quarry

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

H.J. Kaiser Co.

Past Producer • Sand and Gravel, Construction

Silva Bros.

Past Producer • Sand and Gravel, Construction

Rhodes & Jamieson Centerville Plant

Past Producer • Sand and Gravel, Construction

Oliver Bros. Salt Co.

Producer • Halite

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Ryan Ranch

Past Producer • Clay

Tesla Sand and Clay Co.

Past Producer • Clay, Sand and Gravel, Construction

Buranis Bros. & Co.

Past Producer • Sand and Gravel, Construction

Livermore Pit and Mill

Past Producer • Sand and Gravel, Construction

Pac. Coast Agg. Eliot No. 104

Past Producer • Sand and Gravel, Construction

Rhodes & Jamieson Ltd.

Past Producer • Sand and Gravel, Construction

H.J. Kaiser Co. Radum Plant

Past Producer • Sand and Gravel, Construction

Picard

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Inland Aggregates

Past Producer • Sand and Gravel, Construction

Ki-Lite Mine and Mill

Past Producer • Clay

Dumbarton Quarry

Producer • Stone

Radum Pit and Mill

Past Producer • Sand and Gravel, Construction

Kelly

Occurrence •

Friggel Prospect

Occurrence •

Buckhorn

Occurrence •

Winship Properties

Prospect • Manganese

Unknown

Prospect • Quartz

Mendenhall No. 1 Mine

Past Producer • Chromium

Bell Sand and Gravel

Past Producer • Sand and Gravel, Construction

Quarry

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Berkeley Hills

Past Producer • Sulfur-Pyrite, Copper

Leona Heights

Past Producer • Copper

Ellis Ranch Deposit

Producer • Manganese

Camp 9 Merchant, Cummings

Producer • Manganese

Mendenhall Mine

Producer • Manganese

Black Jack

Producer • Manganese

Dewhirst

Producer • Manganese

Douglas Mine

Producer • Chromium

Jones

Producer • Chromium

Newman Estacia Property

Producer • Manganese

Livermore Deposit

Producer • Manganese

Root

Producer • Manganese

Dragi

Producer • Manganese

Mission Lime Marl Deposit

Producer • Limestone, General

Man Ridge

Producer • Manganese

Black Jack Mine

Producer • Manganese

Mendenhall Mine

Producer • Manganese

American Salt Co.

Producer • Halite

Chabot Quarry

Producer • Stone, Crushed/Broken

Unnamed Location

Occurrence • Stone, Crushed/Broken

Unnamed Location

Occurrence • Stone, Crushed/Broken

Unnamed Location

Occurrence • Clay

San Leandro Quarry and Mill

Producer • Stone, Crushed/Broken

Central Maintenance Heavy Equip Shp

Producer • Sand and Gravel, Construction

Clark Claim

Past Producer •

Niles Sand and Gravel Pit

Producer • Sand and Gravel, Construction

Kraftile Clay Pit

Producer • Clay

Mendenhall No. 1

Past Producer •

Pleasanton Deposit

Past Producer • Limestone, General

Eliot Pit & Mill

Producer • Sand and Gravel, Construction

Hagemann Pit

Producer • Sand and Gravel, Construction

Ki-Lite Pit & Mill

Producer • Clay

Unnamed Location

Occurrence • Lead

Kelly Mine

Prospect •

Unnamed Location

Occurrence • Stone

Inland Aggregates

Past Producer • Sand and Gravel, Construction

Mclaughlinlithograph-Stonequarry

Occurrence • Limestone, Dimension

Radum Pit

Producer • Sand and Gravel, Construction

La Vista Quarry and Mill

Producer • Stone

Crosby Prospects

Prospect •

Hearst Mine

Prospect •

Winship Properties

Prospect • Manganese

Newman Mine

Past Producer •

Rhodes & Jamieson Ltd.

Producer • Sand and Gravel, Construction

Pine Grove

Occurrence • Chromium

Bellini Quarry

Producer • Stone, Crushed/Broken

Ellis Ranch Prospect

Prospect •

Quarry Products-Niles

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Clay

Corral Hollow Mine

Past Producer •

Nelson Lease

Past Producer •

Unnamed Location

Occurrence • Manganese

Sunol Pit

Producer • Sand and Gravel, Construction

Interpace

Producer • Fire Clay (Refractory)

Overacker Mine

Occurrence •

Mt. Hamilton Deposit

Occurrence • Manganese

Isler Mountain

Occurrence • Manganese

Homestead Deposit

Occurrence • Manganese

Ada Sand and Gravel Pit No 2

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Clay

Winship Properties

Occurrence • Manganese

Friggel Prospect

Prospect • Manganese

Leona Quarry

Producer • Stone

Mission Pass Quarry

Producer • Stone, Crushed/Broken

Gravel Pit

Past Producer • Sand and Gravel, Construction

Niles Pit & Mill

Producer • Sand and Gravel, Construction

Kaiser Industries Corp

Producer • Clay

Kaiser Sand & Gravel

Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Pac. Coast Agg. Eliot No. 104

Producer • Sand and Gravel, Construction

Man Ridge Mine

Past Producer •

Lake Anza Mine

Unknown • Mercury

Buckhorn Claim

Past Producer •

Picard

Past Producer • Sand and Gravel, Construction

Sanderling Dredge

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Stone

Jumbo Prospect

Past Producer •

Silva Bros.

Producer • Sand and Gravel, Construction

Ivaldi Bros Quarry

Producer • Sand and Gravel, Construction

Camp 9

Past Producer •

Unnamed Location

Occurrence • Stone

Foscilina

Prospect • Manganese

Niles Canyon Road Pit

Producer • Stone, Crushed/Broken

Hayes Ranch Deposit

Prospect • Magnesite

Gravel Pits

Past Producer • Sand and Gravel, Construction

Unnamed Location

Prospect • Silica

East Bay Excavation Co

Producer • Stone, Crushed/Broken

Livermore Deposit

Occurrence • Manganese

Dewhirst Mine

Past Producer •

Bartlett Mine

Past Producer •

Alameda Co. #39

Prospect •

Freitas Prospect

Prospect •

Cedar Claim

Occurrence • Chromium

Banta S Camp Deposit

Occurrence • Magnesite

Winship Properties

Prospect • Manganese

Q-1, Q-76 Pits

Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Sunol Pit

Producer • Sand and Gravel, Construction

Bezley Quarry

Producer • Silver

Unknown

Occurrence • Stone

Unnamed Location

Occurrence • Clay

Buena Vista Pit

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Sulfur

Sands Fremont Quarry

Producer • Sand and Gravel, Construction

Winegar

Prospect •

Black Jack

Past Producer •

Livermore Pit and Mill

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Gemstone

Dumbarton Mill

Producer • Stone, Crushed/Broken

Unnamed Location

Occurrence • Chromium

Unnamed Location

Occurrence • Stone

Telsa Sand & Clay Co

Past Producer • Clay

Durham Pit

Producer • Stone

Reay Deposit

Occurrence • Manganese

Cummings

Prospect •

H.J. Kaiser Co.

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Stone

Santa Clara Sand and Gravel Pit

Producer • Sand and Gravel, Construction

Pleasanton Pit & Mill

Producer • Sand and Gravel, Construction

Quarry

Past Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Magnesite

Mendenhall Mine

Past Producer •

Bell Sand and Gravel

Past Producer • Sand and Gravel, Construction

Kaiser Sand & Gravel

Producer • Sand and Gravel, Construction

Collins Deposit

Occurrence • Nitrogen-Nitrates

Kit-Lite Mine and Mill

Past Producer • Clay

Standard Magnesite

Past Producer • Manganese

Unnamed Location

Occurrence • Clay

Beraudiere Mine

Past Producer •

Leslie Salt Co

Producer • Salt

King Claim

Prospect • Magnesite

Reay Deposit

Past Producer •

Ideal Cement Co.

Occurrence • Limestone, Dimension

Sunol Pit

Producer • Sand and Gravel, Construction

Dragi

Prospect • Magnesite

Unnamed Location

Occurrence • Asbestos

Unnamed Locations

Occurrence • Chromium

Moller Pit

Producer • Sand and Gravel, Construction

Cragmont Mine

Unknown • Mercury

Gravel Pit

Past Producer • Sand and Gravel, Construction

Ryan Ranch

Past Producer • Clay

Jones

Prospect •

Calaveras Pit

Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Berkeley Hills

Unknown • Lead

H.J. Kaiser Co. Radum Plant

Producer • Sand and Gravel, Construction

Vasco Road Pit

Producer • Silver

American Salt Co.

Producer • Salt

Niles Pit

Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Newark Evaporation Ponds

Producer • Salt

Quarry

Past Producer • Sand and Gravel, Construction

Radum Pit and Mill

Producer • Sand and Gravel, Construction

Oliver Salt

Producer • Salt

Section 14 Mine

Past Producer •

Alum

Past Producer • Sulfur

Graves Claims

Past Producer •

Unnamed Location

Occurrence • Mercury

Root Deposit

Past Producer •

Gravel Pit

Past Producer • Sand and Gravel, Construction

Niles Pit and Mill

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Stone

Unnamed Location

Occurrence • Gemstone

Winship Properties

Occurrence • Manganese

Unnamed Location

Occurrence • Stone, Crushed/Broken

Buranis Bros. & Co.

Past Producer • Sand and Gravel, Construction

Dyer Prospect

Occurrence •

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Quarry

Past Producer • Sand and Gravel, Construction

Quarry

Past Producer • Stone

Taylor and Pitcher

Past Producer •

Patterson Pass Road Pit

Producer • Sand and Gravel, Construction

Winship Properties

Prospect • Magnesite

Winship Properties

Occurrence • Manganese

Niles Quarry

Producer • Stone, Crushed/Broken

Unnamed Location

Occurrence • Stone

Unnamed Location

Occurrence • Manganese

Menden

Past Producer •

Oakland Dredge Concrete

Producer • Sand and Gravel, Construction

Newman

Producer •

Chaney Lease

Past Producer •

Manzanita Grove

Prospect • Chromium

Mission Lime Marl Deposit

Past Producer • Calcium

Interlocking Rood Tile Co.

Past Producer • Clay

Gallagher Deposit

Past Producer •

John D. Hoff Asbestos Co.

Prospect • Asbestos

Leona

Past Producer • Sulfur

Dumbarton Quarry

Producer • Stone