Browse mineral resources

Aho Mine

Producer • Manganese

Baker Ranch

Occurrence •

Dillon and Seefeldt Deposit

Producer • Manganese

Foerchler Prospect

Occurrence •

Foss Prospect

Occurrence • Manganese

Hayden Prospect

Occurrence • Manganese

Holst-Weeks Prospect

Occurrence •

Sharp Prospect

Occurrence •

Paul Warner Property

Occurrence •

Wheeler Prospect

Occurrence •

White-O-Ranch

Occurrence •

Archer

Past Producer • Copper

Cornucopia

Occurrence •

Gray Prospect

Occurrence •

Grizzly

Occurrence •

Ward Tract

Occurrence •

Ann Belcher

Occurrence •

Black Oak

Past Producer • Mercury

Buckeye

Past Producer • Mercury

Black Bear

Past Producer • Mercury

Culver Baer

Producer • Mercury

Dewe*

Past Producer • Mercury

Cloverdale

Past Producer • Mercury

Contact

Past Producer • Mercury

Crystal

Past Producer • Mercury

Esperanza

Producer • Mercury

Eureka

Past Producer • Mercury

Kissack

Past Producer • Mercury

Lost Ledge and Mercuryville Divide

Past Producer • Mercury

Rattlesnake

Past Producer • Mercury

Socrates

Past Producer • Mercury

Truitt No. 1

Past Producer • Mercury

Lookout

Occurrence • Mercury

Cinnabar King Group

Past Producer • Mercury

Denver and Hope

Past Producer • Mercury

Jumbo

Past Producer • Mercury

Yellowjacket

Past Producer • Mercury

Boston

Occurrence •

Great Northern

Occurrence • Mercury

Napa

Occurrence • Mercury

Occidental

Occurrence • Mercury

Old Chapman

Occurrence •

Last Chance and Young Denver

Past Producer • Mercury

Mary Hurley

Occurrence •

Mericoma

Past Producer • Mercury

Sonoma Group

Producer • Mercury

Pacific Group

Occurrence •

Livermore

Occurrence •

Mercury Bank

Past Producer • Mercury

Great Eastern and Mount Jackson

Producer • Mercury

Walker

Occurrence • Mercury

Wall Springs

Occurrence • Mercury

Altamont Copper Group

Occurrence • Mercury, Copper

Skaggs Springs

Past Producer • Mercury

Gaver Prospect

Occurrence • Chromium

Laton Mine

Past Producer • Chromium

Red Hill Claim

Past Producer • Chromium

Rough Crossing Claim

Producer • Chromium

Shanks and Copps Claim

Producer • Chromium

Sonoma Chrome, Inc. Deposit

Past Producer • Chromium

Welch Prospect

Occurrence • Chromium

Warner and Clark Claim

Occurrence • Chromium

Guerneville

Producer • Mercury

Fairville Quarry

Producer • Stone

Unnamed Location

Past Producer • Sand and Gravel, Construction

Palmer Pit

Past Producer • Sand and Gravel, Construction

Cannon Lane

Past Producer • Sand and Gravel, Construction

Felder

Producer • Stone

Fowler Creek

Past Producer • Sand and Gravel, Construction

Sonoma Grove

Past Producer • Sand and Gravel, Construction

Wrobel Pit

Past Producer • Sand and Gravel, Construction

Cannon Quarry

Producer • Stone

Weise Clay Pit

Past Producer • Clay

Gerberding

Producer • Stone

Valley of the Moon

Producer • Stone, Crushed/Broken

Serres Pit

Past Producer • Sand and Gravel, Construction

Rainbow

Producer • Stone

Skinner Ranch

Producer • Graphite

Bliss Creek

Past Producer • Sand and Gravel, Construction

Hein Bros. Basalt Rock Co.

Producer • Stone

Zaney Gravels

Producer • Stone

Unnamed Location

Past Producer • Sand and Gravel, Construction

Spaletta Gravel Pit

Past Producer • Sand and Gravel, Construction

Onsrud Gravel Pit

Past Producer • Sand and Gravel, Construction

Unnamed Location

Producer • Stone

Cambou Quarry

Producer • Stone, Crushed/Broken

Porter Creek Road

Past Producer • Sand and Gravel, Construction

Unnamed Location

Producer • Gold

Stony Point Quarry and Mill

Producer • Stone

Petaluma Hill Road

Producer • Stone, Crushed/Broken

Dreamland

Producer • Mercury

Unnamed Location

Producer • Manganese

Pine Flat Road

Past Producer • Sand and Gravel, Construction

Mcdonald

Occurrence •

Canyon Rock Pit and Mill

Producer • Stone

Archambeau Prospect

Occurrence •

*onnell Prospect

Occurrence • Manganese

Wright Prospect

Occurrence •

Altamont

Occurrence •

Wall Tract

Occurrence • Copper, Mercury

Madeira Claim

Occurrence • Chromium

Barnes Mine

Past Producer • Chromium

Boyer Mine

Producer • Manganese

Dreamland Mine

Producer • Manganese

Mayacmas

Producer • Mercury

Quarry

Producer • Stone

Felder

Producer • Diatomite

Candy Rock

Producer • Stone

Joulie Quarry

Producer • Stone

Richter Deposit

Producer • Diatomite

Malnati Quarry

Producer • Stone

Williams

Producer • Stone

Annadel Farm

Producer • Perlite

Gordenker

Producer • Stone

Murphy Ranch Deposit

Producer • Mercury

Meachim Hill

Producer • Stone

O Connor

Producer • Stone

Goodman Bros. Deposit

Producer • Diatomite

Rainbow

Producer • Stone

Melville Ranch

Unknown • Magnesite

Unnamed Prospect

Occurrence • Gold

O Connor

Past Producer • Stone

Graham Quarry

Producer • Stone, Crushed/Broken

River Road Pit

Producer • Sand and Gravel, Construction

Rough Crossing

Past Producer •

Unnamed Location

Occurrence • Stone

Ghilotti Bros. - Marin Co.

Producer • Stone, Dimension

Unnamed Location

Occurrence • Aluminum

Skinner Ranch

Past Producer • Graphite

Gauer Bar

Producer • Sand and Gravel, Construction

Trinity Quarry

Producer • Stone, Dimension

Napa

Unknown • Mercury

Unnamed Location

Occurrence • Chromium

Bloomfield Quarry and Mill

Past Producer • Stone, Crushed/Broken

Grace Ranch Pit

Producer • Sand and Gravel, Construction

Mcmurphy Pit

Producer • Sand and Gravel, Construction

Unnamed Prospect

Unknown • Copper

Culver Bear

Unknown • Mercury

Unnamed Location

Unknown • Chromium

Inman Shale Quarry

Producer • Stone, Crushed/Broken

Unnamed Location

Prospect • Mercury

Mark West Shale Quarry

Producer • Stone

Big Sulfur Creek Bar

Producer • Sand and Gravel, Construction

Unnamed Prospect

Occurrence • Manganese

Burl Howell Quarry

Unknown • Stone

Sweet/Kuimelis Bar

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Copper

Afsten Sand Pit

Producer • Sand and Gravel, Construction

Guerneville Mine & Mill

Producer • Stone

Reltane Deposit

Prospect • Clay

Archambeau Prospect

Prospect •

Spaletta Quarry

Producer • Sand and Gravel, Construction

Mcpherson Ranch

Occurrence • Chromium

Gualala Bar

Producer • Sand and Gravel, Construction

Curmings

Unknown • Magnesite

Unnamed Location

Occurrence • Chromium

Unnamed Location

Occurrence • Chromium

Dinucci Quarry

Unknown • Stone, Crushed/Broken

Kissack Prospect

Unknown • Mercury

Albertz Ranch Deposit

Unknown • Magnesite

Unnamed Location

Occurrence • Chromium

Mark West Creek

Unknown • Sand and Gravel, Construction

Unnamed Location

Occurrence • Copper

Maxwell Bros.

Unknown • Sand and Gravel, Construction

Unnamed Prospect

Occurrence • Mercury

Porter Creek Road

Past Producer • Sand and Gravel, Construction

Unnamed Location

Prospect • Quartz

Unnamed Location

Occurrence • Mercury

Valley of the Moon

Past Producer • Flagstone

Reimon & Garrett Gravel Co.

Unknown • Sand and Gravel, Construction

Siri & King Gravel Plant

Unknown • Sand and Gravel, Construction

Cloverdale Bar

Producer • Sand and Gravel, Construction

Gravel Pit

Past Producer • Sand and Gravel, Construction

Onsrud Gravel Pit

Past Producer • Sand and Gravel, Construction

Lerberding

Past Producer • Stone

Barnes Mine

Past Producer •

Clar Quarry

Unknown • Stone

Unnamed Prospect

Occurrence • Chromium

Unnamed Location

Prospect • Perlite

Sonoma

Unknown • Mercury

Livermore Quicksilver Mine

Prospect • Mercury

Henry Doelger

Unknown • Chromium

Hel* Half Acre Quarry

Producer • Stone, Crushed/Broken

Parker Hill Ranch

Prospect • Sand and Gravel, Construction

Skaggs Springs

Unknown • Mercury

Annadel Farm

Past Producer • Perlite

Unnamed Location

Occurrence • Sulfur

Holst-Weeks Prospect

Prospect •

Unnamed Location

Occurrence • Geothermal

Felder

Past Producer • Diatomite

Jumbo

Unknown • Mercury

Mount Hood Mine

Unknown • Chromium

Serres Pit

Past Producer • Sand and Gravel, Construction

Unnamed Prospect

Occurrence • Iron

Brush

Occurrence • Magnesite

Blue Rock Pit and Mill

Unknown • Stone, Dimension

Black Ranch

Unknown • Calcium

Buckeye Mine

Unknown • Mercury

Lookout

Unknown • Mercury

Windsor Pit

Producer • Sand and Gravel, Construction

Unnamed Prospect

Unknown • Mercury

Unnamed Location

Past Producer • Sand and Gravel, Construction

Eagle Rock

Unknown • Mercury

Walker Prospect

Unknown • Mercury

Cannon Quarry

Past Producer • Stone

Rowan Deposit

Occurrence •

Unnamed Location

Unknown • Manganese

Canyon Rock Quarry

Producer • Stone, Crushed/Broken

Cloverdale

Unknown • Mercury

Grace Brothers, Inc.

Occurrence • Sand and Gravel, Construction

Unnamed Location

Occurrence • Manganese

Sowoma Grove

Past Producer • Sand and Gravel, Construction

Clark Quarry

Unknown • Stone

Sand Pit

Unknown • Sand and Gravel, Construction

Twin Bridges Section 2

Producer • Sand and Gravel, Construction

Unnamed Prospect

Occurrence • Mercury

Basalt Rock Co.

Unknown • Sand and Gravel, Construction

Sonoma Creek Pit

Producer • Sand and Gravel, Construction

Bacon Consolidated

Past Producer • Mercury

Richter Deposit

Past Producer • Diatomite

Unnamed Prospect

Occurrence • Mercury

Murphy Ranch Deposit

Past Producer • Mercury

Mill Creek Road

Occurrence • Stone

Harold Groom Pit #2

Producer • Sand and Gravel, Construction

Layton

Unknown • Chromium

Drake Bar

Producer • Sand and Gravel, Construction

Quarry

Unknown • Stone

Occidental

Unknown • Mercury

Unnamed Location

Occurrence • Mercury

Unnamed Location

Prospect • Perlite

Brooks Quarry

Producer • Stone

Vimark Bar

Occurrence • Sand and Gravel, Construction

Unnamed Prospect

Occurrence • Mercury

Meaker Ranch

Unknown • Magnesite

Geyser Quarry

Unknown • Stone

Unnamed Prospect

Unknown • Mercury

Bianchini Bar

Producer • Sand and Gravel, Construction

White-O-Ranch Prospect

Occurrence •

Unnamed Location

Prospect • Sand and Gravel, Construction

Cinnaber King Group

Unknown • Mercury

Cambou Quarry

Past Producer • Stone, Crushed/Broken

Crystal

Prospect • Mercury

Anne Belcher

Unknown • Mercury

Mccutchan Ranch Bar

Producer • Sand and Gravel, Construction

Austin Creek Pit

Producer • Stone, Crushed/Broken

Rattlesnake

Unknown • Mercury

Ward Tract

Occurrence • Copper

Healdsburg Bar

Producer • Sand and Gravel, Construction

Alexander Valley Bar

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Manganese

Blue Rock Quarry

Producer • Stone, Crushed/Broken

Bohan & Canelis

Unknown • Sand and Gravel, Construction

Unnamed Prospect

Unknown • Mercury

Quarry

Unknown • Stone

Dillon and Seefeldt Manganese

Past Producer • Manganese

Archer Tract

Unknown • Copper

Unnamed Location

Past Producer • Gold

Gordenker

Past Producer • Stone

Unnamed Location

Past Producer • Sand and Gravel, Construction

Baker Ranch

Occurrence •

Tatge Bar

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Sand and Gravel, Construction

Gerdes/Garibaldi Bar

Producer • Sand and Gravel, Construction

Socrates

Unknown • Mercury

Westside Bridge Pit

Producer • Sand and Gravel, Construction

Purviance Ranch

Unknown • Calcium

Mirabel Sand & Gravel

Unknown • Sand and Gravel, Construction

Pronini Ranch

Prospect • Sand and Gravel, Construction

Baldrini Prospect

Unknown • Chromium

Hillside Quarry

Producer • Stone, Crushed/Broken

Unnamed Location

Occurrence • Chromium

Rainbow

Past Producer • Stone

Zaney Gravels

Past Producer • Stone

Gray Prospect

Occurrence • Copper

Yellow Jacket

Past Producer • Mercury

Trudell Rock Co.

Unknown • Sand and Gravel, Construction

Unnamed Location

Occurrence • Gemstone

Giovaninni Quarry

Producer • Stone, Crushed/Broken

Skaggs

Unknown • Mercury

Carano Bar

Producer • Sand and Gravel, Construction

Basalt Rock Co.

Unknown • Stone

Petaluma Plant No. 7

Producer • Stone, Dimension

Derrick Tin Prospect

Unknown • Tin

Willow Creek

Unknown • Sand and Gravel, Construction

Last Chance

Prospect • Mercury

Unnamed Location

Occurrence • Mercury

Unnamed Location

Occurrence • Chromium

Red Hill

Past Producer •

Grizzly

Unknown • Copper

Esperanza

Unknown • Mercury

Mount Jackson/Great Eastern

Past Producer • Mercury

Flagstaff

Unknown • Mercury

Welch Prospect

Occurrence • Chromium

Dewey S

Unknown • Mercury

Unnamed Location

Past Producer • Stone

Sonoma Rock Quarry

Producer • Stone

Geyserville Bar

Producer • Sand and Gravel, Construction

Unnamed Prospect

Unknown • Chromium

Contact

Unknown • Mercury

Gravel Pit

Unknown • Sand and Gravel, Construction

Sonoma Group

Unknown • Mercury

Petaluma Quarry

Producer • Stone, Crushed/Broken

Laton

Past Producer •

Dreamland Mine

Past Producer •

Basalt Rock Co.

Unknown • Sand and Gravel, Construction

Nuns Canyon Quarry

Producer • Stone, Crushed/Broken

Palmer Pit

Past Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Chromium

Sartori Ranch

Past Producer • Sand and Gravel, Construction

Dillon and Seefeldt

Prospect • Manganese

Sonoma Magnesite

Unknown • Magnesite

Unnamed Prospect

Occurrence • Mercury

Unnamed Location

Occurrence • Perlite

Quarry

Past Producer • Stone

Fowler Creek

Past Producer • Sand and Gravel, Construction

Mercury Bank Mines

Unknown • Mercury

Russian River Pit

Past Producer • Sand and Gravel, Construction

Red Side

Unknown • Magnesite

Kentuck

Unknown • Mercury

Unnamed Location

Unknown • Garnet

Wheeler Prospect

Prospect • Manganese

Williams

Past Producer • Stone

Gualala Aggregates

Producer • Sand and Gravel, Construction

Unnamed Location

Prospect • Perlite

Unnamed Location

Occurrence • Chromium

Rolando Bar

Producer • Sand and Gravel, Construction

Unnamed Prospect

Unknown • Mercury

Pine Flat

Occurrence • Manganese

Pine Flat Road

Past Producer • Sand and Gravel, Construction

Healdsburg Bar

Producer • Sand and Gravel, Construction

Unnamed Prospect

Occurrence • Mercury

Meachim Hill

Past Producer • Stone

Unnamed Location

Occurrence • Stone

Aho Mine

Past Producer •

Hayden Prospect

Unknown •

Foppiano Quarry

Occurrence • Stone

Hooper Ranch

Occurrence • Iron

Gravel Pit

Unknown • Sand and Gravel, Construction

Dry Creek Gravel Co

Producer • Sand and Gravel, Construction

Quarry

Unknown • Stone

Unnamed Location

Occurrence • Sand and Gravel, Construction

Unnamed Prospect

Prospect • Aluminum

Garibaldi Bar

Producer • Sand and Gravel, Construction

Hagemann Ranch Quarry

Producer • Stone, Crushed/Broken

Zamaroni Quarry

Producer • Stone, Crushed/Broken

Squaw Creek

Unknown • Copper

Sonoma Chrome Inc

Past Producer •

Old Chapman

Occurrence • Mercury

Madeira

Unknown • Magnesite

Healdsburg Pit and Mill Plant No 2

Producer • Sand and Gravel, Construction

Unnamed Limestone

Past Producer • Calcium

Russian River Bar

Producer • Sand and Gravel, Construction

Warner Property

Occurrence •

Bliss Creek

Past Producer • Sand and Gravel, Construction

Unnamed Location

Unknown • Magnesite

Denver

Unknown • Mercury

Raineys Ready-Mix

Unknown • Sand and Gravel, Construction

Wrobel Pit

Past Producer • Sand and Gravel, Construction

Unnamed Location

Unknown • Mercury

Unnamed Prospect

Occurrence • Mercury

Chenoweth Quarry

Producer • Stone, Crushed/Broken

Malnati Quarry

Past Producer • Stone

Mohawk

Unknown • Mercury

Foerchler

Prospect • Manganese

Pattenburg Refractory Magnst. Mine.

Unknown • Magnesite

Unnamed Prospect

Unknown • Mercury

Cannon Lane

Past Producer • Antimony

*onnell Prospect

Prospect •

Joule Quarry

Past Producer • Stone

Shanks&Copps

Past Producer •

Unnamed Location

Unknown • Copper

Absco Paving Co.

Unknown • Sand and Gravel, Construction

Mary Hurley

Unknown • Mercury

Unnamed Location

Past Producer • Manganese

Shaw

Unknown •

Unnamed Location

Past Producer • Sand and Gravel, Construction

Unnamed Prospects

Occurrence • Mercury

Healdsburg

Unknown • Calcium

Healdsburg Lode

Unknown • Copper

Hgi Sand and Gravel Pit

Producer • Sand and Gravel, Construction

Meeker Ocher Deposit

Unknown • Stone, Crushed/Broken

Kohlman Gulch

Occurrence • Calcium

Quarry

Unknown • Stone

Weise Clay Pit

Past Producer • Clay

Saint Clair Bar

Producer • Sand and Gravel, Construction

Baby Jack

Unknown • Copper

Soda Rock Bar

Producer • Sand and Gravel, Construction

Jimtown Pit

Producer • Sand and Gravel, Construction

Sonoma Group Prospect

Past Producer • Mercury

Todd Pit

Producer • Sand and Gravel, Construction

Boston Group

Prospect • Mercury

Candy Rock

Past Producer • Stone

Stony Point Quarry

Producer • Stone, Crushed/Broken

Unnamed Prospect

Occurrence • Mercury

Middle Reach Bar

Producer • Sand and Gravel, Construction

Great Northern

Prospect • Mercury

Sonoma Co. No. 27

Past Producer • Manganese

Unnamed Prospect

Occurrence • Mercury

Mt Pisgah Vineyard

Unknown • Diatomite

Unnamed Prospect

Occurrence • Tin

South Pit

Producer • Sand and Gravel, Construction

Harold Groom Trucking Inc.

Unknown • Sand and Gravel, Construction

Western Carbonic Acid Gas Co.

Unknown • Magnesite

Stage Gulch Quarry , Inc.

Producer • Stone, Crushed/Broken

Black Oak # 1

Unknown • Mercury

Z and G Quarry and Mill

Unknown • Stone, Dimension

Sharp Prospect

Unknown •

Maricoma Quicksilver Mine

Unknown • Mercury

Unnamed Location

Occurrence • Magnesite

Boyer Mine

Prospect •

Foss Prospect

Unknown •

River Oaks Ranch Bar

Producer • Sand and Gravel, Construction

Norton Ranch

Unknown • Magnesite

Wright Prospect

Prospect •

Goodman Bros. Deposit

Past Producer • Diatomite

Altamont

Unknown • Copper

Mcdonald Property

Occurrence •

Doyle Pit

Producer • Sand and Gravel, Construction

Alexander Valley Bars

Producer • Sand and Gravel, Construction

Unnamed Prospect

Unknown • Gold

Unnamed Prospect

Occurrence • Mercury

Burgaus Ranch

Occurrence • Magnesite

Wall Springs

Occurrence • Mercury

Unnamed Location

Occurrence • Geothermal

West Mayacmas District Report

Producer • Chromium, Mercury

Pine Flat District

Occurrence • Manganese