Browse mineral resources

Acme Lode Claim

Occurrence •

Antonia Claim

Occurrence • Manganese

Billy Goat Prospect

Producer • Manganese

Black Bear Mine

Occurrence • Manganese

Blackbird Claim

Occurrence • Manganese

Cedar Tree Claims 1 and 2

Occurrence • Manganese

Davenport Prospect

Occurrence • Manganese

Davenport and Smith Property

Occurrence • Manganese

Deforest Prospect

Occurrence •

Fable Mine

Occurrence •

Frankel Prospect

Occurrence •

Great Expectation Mine

Occurrence •

Keller Brothers Prospect

Occurrence •

Kelley Prospect

Occurrence •

Lopez Prospect

Occurrence •

May Be Claim

Occurrence •

Mexican Prospect

Occurrence •

Newsom Prospect

Occurrence •

Section 28

Occurrence • Manganese

Turner Deposit

Producer • Manganese

Laguna Sera Ranch

Occurrence •

Masson Ranch

Occurrence •

Palo Alto Sewage Sludge

Occurrence • Gold, Silver, Phosphorus-Phosphates

Bernal

Past Producer • Mercury

Brainard

Occurrence •

Bowie

Occurrence • Mercury

Chaboya - Hillsdale

Past Producer • Mercury

Guadalupe

Producer • Mercury

New Almaden

Past Producer • Mercury

New Almaden - Cora Blanca Area

Past Producer • Mercury

New Almaden - Harry Area

Past Producer • Mercury

New Almaden - Central Stope Area

Past Producer • Mercury

New Almaden - Victoria Area

Past Producer • Mercury

New Almaden - North Randol

Past Producer • Mercury

New Almaden - San Francisco Area

Past Producer • Mercury

New Almaden - Santa Mariana Area

Past Producer • Mercury

American

Past Producer • Mercury

Providencia

Past Producer • Mercury

Enriquita

Past Producer • Mercury

San Antonio

Past Producer • Mercury

San Mateo

Past Producer • Mercury

Deep Gulch Placer

Past Producer • Mercury

Santa Clara

Past Producer • Mercury

Santa Teresa

Past Producer • Mercury

Tilton Ranch

Occurrence • Mercury

Wright

Past Producer • Mercury

Rianda

Past Producer • Mercury

Silver Creek

Past Producer • Mercury

Bay Cities Water Co.

Occurrence • Chromium

Bonetti Mine

Occurrence • Chromium

Ferraro Prospect

Occurrence • Chromium

Yates Lease

Occurrence • Chromium

Laurel Lake Ranch Deposits

Past Producer • Chromium

Mount Hamilton Mine

Occurrence •

New Almaden

Producer • Mercury

Comstock

Producer • Mercury

Keller

Producer • Manganese

Cottonwood

Producer • Manganese

Rmca Group

Producer • Manganese

Western Mines

Producer • Magnesite

Western Magnesite Co. Property

Producer • Chromium

Winship

Producer • Chromium

Pine Ridge

Producer • Manganese

Security

Producer • Magnesite

Doak #2

Producer • Manganese

Winegar

Producer • Manganese

Pulse

Producer • Manganese

A. M. Kelley Prospect

Occurrence •

O:Connell Bros.

Producer • Magnesite

Unnamed Location

Producer • Mercury

Santa Clara Sand & Gravel

Past Producer • Sand and Gravel, Construction

Bradford Ranch

Producer • Magnesite

Wallace Ranch

Occurrence •

Mccoy

Producer • Manganese

New Almaden

Producer • Copper

New Almaden Placers & Dumps

Producer • Mercury

Permanente Metals Corp.

Producer • Stone, Crushed/Broken

Kilday Ranch Deposits

Producer • Chromium

Guadalupe Lime Co.

Producer • Calcium

Oak Hill

Producer • Stone

Piazza

Past Producer • Sand and Gravel, Construction

Stanford Quarry

Producer • Stone

Gravel Pit

Past Producer • Sand and Gravel, Construction

Raische

Past Producer • Sand and Gravel, Construction

Lone Hill

Producer • Stone

Hillsdale

Producer • Mercury

Smith

Producer • Chromium

Gladding Bros. Mfg. Co.

Past Producer • Clay

Remillard-Dandini Co.

Past Producer • Clay

San Jose

Producer • Manganese

Garden City Pottery Co.

Past Producer • Clay

Fredrickson-Wetson

Producer • Stone

New Page Mill Quarries

Producer • Stone

Permanente Cement Co.

Past Producer • Calcium

Commercial Materials

Producer • Stone, Crushed/Broken

Sondgrath Bros.

Producer • Stone, Crushed/Broken

Unnamed Location

Producer • Mercury

Greenwalls Property

Producer • Chromium

Hooker Creek

Occurrence •

Los Gatos Sand & Gravel Co.

Past Producer • Sand and Gravel, Construction

San Jose Brick & Tile Co.

Past Producer • Clay

Western Gravel Co.

Past Producer • Sand and Gravel, Construction

Sand & Gravel Pit

Past Producer • Sand and Gravel, Construction

Uvas Pit

Past Producer • Sand and Gravel, Construction

Sand & Gravel Pit

Past Producer • Sand and Gravel, Construction

Neary Rock Quarry

Producer • Stone

Quarry

Producer • Stone

Mammouth Mine

Occurrence •

Triple Jump Claim

Occurrence •

Ramelli Prospect

Occurrence • Chromium

New Almaden - Velasco Area

Past Producer • Mercury

New Almaden - South Randol

Past Producer • Mercury

New Almaden - San Pedro-Almaden Area

Past Producer • Mercury

Senator

Past Producer • Mercury

Comstock

Past Producer • Mercury

*onnell Mine

Past Producer • Chromium

Ala Mountain Mine

Producer • Manganese

Black Eagle

Producer • Manganese

Unnamed Location

Producer • Mercury

Black Horse

Producer • Manganese

Queen Bee No 1 Claim

Producer • Manganese

Jones Group

Producer • Manganese

Western Mine

Producer • Magnesite

Pennsylvania

Producer • Manganese

Western Mine

Producer • Magnesite

Fidelity Deposit

Producer • Magnesite

Winship

Producer • Manganese

Morgan Hill Prospect

Producer • Manganese

Bernal

Producer • Calcium

Mateos Ranch

Producer • Manganese

Miller

Producer • Manganese

New Almaden

Producer • Mercury

Crystal Ball Mining Co.

Producer • Mercury

Enriquita Mine

Producer • Mercury

Senator Dump

Producer • Stone

Unnamed Location

Producer • Chromium

Hahn Ranch Deposits

Producer • Chromium

Quarry

Producer • Stone

Borrow Pit

Producer • Stone

Quarry

Producer • Stone

Bahr & Ledoyen, Inc.

Producer • Stone

Saratoga

Producer • Stone, Crushed/Broken

Voss

Producer • Stone, Crushed/Broken

Adobe Creek Quarry

Producer • Stone, Crushed/Broken

Douglas Ranch

Producer • Calcium

Quarry

Producer • Stone

Rianda

Past Producer • Mercury

Hillsdale

Past Producer • Mercury

Ferrero

Past Producer •

Hooker Creek

Past Producer • Copper

Western Magnesite Company

Past Producer •

Fidelity Deposit

Past Producer • Magnesite

Hubble Sand and Gravel

Unknown • Sand and Gravel, Construction

Ed Kelley Prospect

Prospect •

Permanente Quarry

Producer • Calcium

Silver Creek Hills Prospects

Past Producer • Mercury

Bonetti

Past Producer •

Kilday Ranch

Past Producer •

Unnamed Location

Occurrence • Stone, Crushed/Broken

Unnamed Location

Occurrence • Stone, Crushed/Broken

Murmac Group

Past Producer •

Unnamed Location

Prospect • Mercury

W. W. Burnett Ranch

Prospect • Magnesite

Guadalupe Lime Co.

Past Producer • Calcium

Hubble Sand and Gravel Pit and Mill

Past Producer • Sand and Gravel, Construction

Acme Lode Claim

Prospect •

Unnamed Location

Prospect • Mercury

Calaveras Quarry

Producer • Stone

Alma

Prospect • Stone

Deforest Prospect

Past Producer •

Mammoth Mine

Prospect •

Unnamed Location

Occurrence • Stone, Crushed/Broken

Gravel Pit

Past Producer • Sand and Gravel, Construction

Unnamed Location

Past Producer • Mercury

Polak Pit

Past Producer • Sand and Gravel, Construction

Newson Prospect

Prospect •

Smith

Prospect • Chromium

Blackbird

Prospect • Manganese

Adobe Creek Quarry

Past Producer • Stone, Crushed/Broken

Unnamed Location

Occurrence • Stone, Crushed/Broken

San Jose Plant

Unknown • Sand and Gravel, Construction

Pulse Prospect

Past Producer •

Unnamed Location

Occurrence • Stone, Crushed/Broken

Santa Teresa Mine

Past Producer • Mercury

San Pedro Open Pit

Unknown • Mercury

San Mateo Mine

Past Producer • Mercury

Lopez Prospect

Unknown •

Gilroy Hot Springs

Occurrence • Geothermal

Voss

Past Producer • Stone, Crushed/Broken

Miller

Past Producer • Manganese

Cochrane

Prospect • Magnesite

Page Mill Quarry

Producer • Stone

Tilton Ranch Prospect

Prospect • Mercury

New North Almaden

Prospect • Mercury

Serpa Quarry

Producer • Stone, Crushed/Broken

Fredrickson-Wetson

Past Producer • Stone

May Be Claim

Unknown • Manganese

Borrow Pit

Past Producer • Sand and Gravel, Construction

A M Kelley Prospect

Prospect •

Winship

Prospect • Calcium

Bay Cities Water Col

Past Producer •

Remillard-Dandini Co.

Past Producer • Clay

Blenda

Producer • Sand and Gravel, Construction

Quarry

Unknown • Stone

Pierce Road Quarry

Prospect • Stone, Crushed/Broken

Oak Hill

Past Producer • Stone

Mc Pherson Prospect

Producer • Manganese

Avery Prospect

Occurrence • Manganese

Unnamed Location

Prospect • Manganese

San Jose

Past Producer • Manganese

Unnamed Location

Prospect • Mercury

Cottonwood Claim /Blackwonder

Unknown • Manganese

Cedar Tree Claims

Prospect •

Keller Mine Group

Past Producer •

America Mine

Past Producer • Mercury

Laurel Lake Ranch

Past Producer •

Brem Brs.

Prospect • Sand and Gravel, Construction

Uvas Pit

Past Producer • Sand and Gravel, Construction

Billy Goat Prospect

Past Producer •

Crystal Ball Mining Co.

Past Producer • Mercury

Mateos Ranch Deposit

Past Producer •

Frankel Prospect

Prospect • Manganese

Mexican Prospect No. 3

Past Producer •

Unnamed Location

Prospect • Mercury

Unnamed Location

Prospect • Mercury

*onnell Mine

Past Producer •

Unnamed Location

Prospect • Mercury

Unnamed Location

Prospect • Mercury

Scott Creek Pit

Unknown • Stone, Dimension

Unnamed Location

Occurrence • Chromium

Bradford Ranch

Past Producer • Magnesite

Stevens Creek Quarry

Unknown • Stone, Dimension

Quarry

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Blackbird Claim

Prospect • Manganese

Mccoy

Past Producer • Manganese

Copernicus Peak Prospect

Prospect • Manganese

Quarry

Unknown • Stone

Mt. View Crushing Plant

Producer • Stone, Crushed/Broken

Winship Leases

Past Producer •

Senator Mine

Past Producer • Mercury

Hubble Quarry and Mill

Unknown • Granite

Deposit 8, Big Matt

Past Producer • Manganese

Santa Clara Mill

Producer • Mercury

John Knorr Mine

Unknown • Stone, Dimension

Howson Pit

Unknown • Stone, Dimension

Great Expectation Mine

Prospect •

New Almaden Mine

Past Producer • Mercury

Unnamed Location

Prospect • Mercury

Unnamed Location

Occurrence • Stone, Crushed/Broken

Winegar Mine

Past Producer •

Winfield Pit

Producer • Stone, Crushed/Broken

Quarry

Prospect • Stone

Permanente Cement Plant

Producer • Calcium

Ranelli

Past Producer •

Gravel Pit

Past Producer • Sand and Gravel, Construction

Azevado Quarry

Producer • Stone, Dimension

Roggasch Bros.

Prospect • Stone, Crushed/Broken

Mcfarland Chromite

Prospect • Chromium

Permanente Metals Corp.

Past Producer • Stone, Crushed/Broken

Borrow Pit

Past Producer • Stone

Stevens Creek Quarry

Unknown • Stone, Dimension

Unnamed Location

Occurrence • Gemstone

Unnamed Location

Prospect • Mercury

Doak No 2 Prospect

Past Producer •

Antonia Claim

Prospect •

Western Mine

Past Producer • Magnesite

Wallace Ranch

Prospect •

Gladding Bros. Mfg. Co.

Past Producer • Clay

Enriquita Mine

Past Producer • Mercury

Pacheco Creek Pit

Producer • Sand and Gravel, Construction

Curtner Quarry

Producer • Stone

Unnamed Location

Occurrence • Stone, Crushed/Broken

Unnamed Location

Prospect • Mercury

Macson Ranch

Prospect • Copper

Fable Mine

Past Producer •

Unnamed Location

Prospect • Chromium

Hellyer Pit

Unknown • Stone, Dimension

Guadalupe Mine

Past Producer • Mercury

Pennsylvania

Past Producer •

Bond

Prospect • Calcium

Commercial Materials

Past Producer • Stone, Crushed/Broken

Unnamed Location

Occurrence • Gemstone

Unnamed Location

Occurrence • Stone, Crushed/Broken

Gravel Pit

Past Producer • Sand and Gravel, Construction

Queen Bee No. 1

Unknown • Manganese

Black Horse Claim

Past Producer •

San Francisco Mine

Unknown • Mercury

Western Tile and Supply Co.

Unknown • Sand and Gravel, Construction

Unnamed Location

Prospect • Mercury

Western Tile and Supply Co.

Unknown • Sand and Gravel, Construction

Piazza Sandstone Quarry

Producer • Stone, Crushed/Broken

New Page Mill Quarries

Past Producer • Stone

Graystone Quarry

Prospect • Stone

Silver Creek

Unknown • Mercury

Brems Pit

Unknown • Sand and Gravel, Construction

Stanford Quarry

Past Producer • Stone

Black Eagle

Unknown • Manganese

Ala Mountain Mine

Past Producer •

Peble

Past Producer • Manganese

Black Bear Mine

Prospect •

Unnamed Location

Occurrence • Gemstone

Raische

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Sondgrath Bros.

Past Producer • Stone, Crushed/Broken

Gravel Pit

Unknown • Sand and Gravel, Construction

Douglas Ranch

Past Producer • Calcium

Santa Clara Sand & Gravel

Past Producer • Sand and Gravel, Construction

Western Mine

Past Producer • Manganese

Gravel Pit

Past Producer • Sand and Gravel, Construction

Quarry

Past Producer • Stone

Garden City Pottery Co.

Past Producer • Clay

Pine Ridge Mine

Past Producer •

Calaveras Road Pit

Unknown • Stone, Dimension

Quarry

Past Producer • Stone

Los Gatos Sand & Gravel Co.

Past Producer • Sand and Gravel, Construction

Beauregard Group

Past Producer • Manganese

Pacific Coast Aggregates, Inc.

Prospect • Sand and Gravel, Construction

Mt Hamilton Prospect

Occurrence •

Gravel Pit

Past Producer • Sand and Gravel, Construction

Hahn Ranch Deposits

Past Producer •

Lexington Quarry

Producer • Stone, Crushed/Broken

Masson Ranch Property

Occurrence • Copper

Steinheimer Ranch Prospect

Prospect • Chromium

Bahr & Ledoyen, Inc.

Past Producer • Stone

Hillsdale Pit and Mill

Past Producer • Sand and Gravel, Construction

Sand & Gravel Pit

Past Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Chaboya

Unknown • Mercury

Gravel Pit

Past Producer • Sand and Gravel, Construction

Houret

Prospect • Calcium

Yetes Lease

Past Producer •

Permanente Cement Plant

Producer • Limestone, General

Williams-Rodriques Prospect

Prospect • Mercury

Turner Deposit

Past Producer •

Davenport Prospect

Occurrence •

Unnamed Location

Occurrence • Stone, Crushed/Broken

Quarry

Prospect • Calcium

Keller Brothers Prospect

Prospect • Manganese

San Jose Cement Co.

Prospect • Calcium

Unnamed Location

Prospect • Mercury

Unnamed Limestone Deposit

Occurrence • Limestone, General

Wright Property

Past Producer • Mercury

Bernal Mine

Past Producer • Mercury

Leguna Scca Ranch

Prospect • Copper

Patton Quarry

Producer • Stone, Crushed/Broken

Morgan Hill Prospect

Past Producer •

Jones Group-Nos.1-9

Past Producer •

Brainard Prospect

Prospect • Mercury

Downer Plant

Unknown • Stone

Bay Evaporators

Producer • Salt

Lone Hill

Past Producer • Stone

Unnamed Location

Prospect • Chromium

San Antonio Mine

Past Producer • Mercury

Roggasch Bros. Quarry

Unknown • Stone

Patton Mill

Producer • Stone, Crushed/Broken

Costello Mine

Prospect • Mercury

Howson Mill

Producer • Sand and Gravel, Construction

Sand & Gravel Pit

Past Producer • Sand and Gravel, Construction

Saratoga

Past Producer • Stone, Crushed/Broken

Bowie

Unknown • Mercury

Quarry

Past Producer • Stone

*onnell Brothers

Unknown • Magnesite

Security

Past Producer • Magnesite

New Almaden Placers & Dumps

Past Producer • Mercury

Near Quarry

Producer • Stone

Providencia Mine

Past Producer • Mercury

San Jose Brick & Tile Co.

Past Producer • Clay

Stevens Creek Quarry

Producer • Stone, Crushed/Broken

Stevens Creek Quarry

Unknown • Sand and Gravel, Construction

Deep Gulch Placer

Unknown • Mercury

Black Wonder Sec.28 Group.

Past Producer •

Western Gravel Co.

Past Producer • Sand and Gravel, Construction

Stevens Creek Quarry

Unknown • Sand and Gravel, Construction

Unnamed Location

Past Producer • Chromium

New Almaden District Report

Past Producer • Mercury