Browse mineral resources

Unknown

Occurrence • Mineral Pigments

Unknown

Occurrence • Mercury

Herman

Occurrence •

Smythe Or Herman Prospect

Occurrence • Chromium

Red Devil Claim

Occurrence • Chromium

Ebenhauser

Occurrence •

Ora Hans

Occurrence •

Bell Deposit

Occurrence •

Black Powder

Occurrence •

Unknown

Occurrence • Mercury

Turkey Run Mine

Occurrence • Mercury

Rich Hill Mine Hardester, Bucksnorter

Occurrence • Mercury

Butler Claims

Occurrence • Chromium

Marylyne Prospect

Occurrence • Asbestos

Myers Red Bay

Occurrence •

Unknown

Occurrence • Mercury

Middleton Middletown

Occurrence • Mercury

Smythe

Producer •

Unknown

Producer • Mercury

Holmstedt Deposits

Occurrence • Chromium

Kangaroo Court Mine

Occurrence • Chromium

Prospect

Occurrence • Asbestos

Copper Prince

Past Producer • Copper

Spring Hill

Occurrence •

Unknown

Occurrence • Chromium

Copsey and Jones Prospect

Occurrence • Asbestos

Unknown

Occurrence • Manganese

Christianson Tract

Occurrence •

Arroyo Lobo

Occurrence •

Canary Hill Deposit

Producer • Sulfur

Dow Property

Occurrence • Magnesite

Chromite Occurrence

Occurrence • Chromium

Bartels Bros. Deposit

Occurrence • Mineral Pigments

Gordon Springs Deposits

Occurrence • Chromium

Unknown

Occurrence • Chromium

Whispering Pines Prospect

Occurrence • Chromium

Cobb Mountain Oyster Rock

Occurrence •

Black Point

Prospect •

Reynolds

Occurrence •

Mine

Occurrence • Mercury

Mead

Occurrence •

Unknown

Occurrence • Stone, Dimension

Unknown

Occurrence • Stone, Dimension

Unknown

Occurrence • Stone, Dimension

Unknown

Occurrence • Stone, Dimension

Popp and Nichelini Claim

Occurrence • Chromium

Seigler Springs

Occurrence • Stone, Dimension

Brown Prospect

Occurrence • Chromium

Coleman Prospect

Occurrence •

Unknown

Occurrence • Stone, Dimension

Konocti Mine Bell

Occurrence • Mercury

S-Bar-S Ranch

Occurrence • Diamond

Baxter Prospect G. L. Hildebrand

Occurrence • Mercury

Auschwitz Property

Occurrence • Sulfur

Gravel

Occurrence • Stone

Unknown

Occurrence • Stone, Dimension

Young Adams Prospect

Occurrence • Chromium

T -B-M Prospect

Occurrence • Gold

Little Falls

Occurrence •

Elliot

Occurrence •

Auschwitz Property

Occurrence • Sulfur

Unknown

Occurrence • Stone, Dimension

Schaffer Prospect

Occurrence • Chromium

Immel Property

Producer • Mineral Pigments

Buckeye and Red Bud

Occurrence • Manganese

Rose Ranch

Prospect •

Unknown

Occurrence • Gold, Silver

Cabbage Head Or Fir Root Ridge Claim

Occurrence • Chromium

Overlook

Occurrence •

Unknown

Occurrence • Stone, Dimension

Rainbow Ledge

Occurrence •

Unknown

Occurrence • Stone, Crushed/Broken

Gravelly Valley

Producer • Manganese

Bull Mountain Lode

Occurrence • Chromium

Unknown

Occurrence • Stone, Crushed/Broken

Big Borax Lake

Occurrence • Stone

Copsey and Moore Prospect

Occurrence •

La Bree Claim

Occurrence •

Immel Property

Past Producer • Mineral Pigments

Baxter

Past Producer • Mercury

Lucitta

Past Producer • Mercury

Shamrock

Occurrence •

Sulphur Bank

Past Producer • Mercury, Sulfur

Utopia

Past Producer • Mercury

White Elephant

Occurrence •

Red Elephant

Past Producer • Mercury

Anderson Springs

Past Producer • Mercury

Big Chief

Past Producer • Mercury

Big Injun

Past Producer • Mercury

Thorne

Past Producer • Mercury

Bullion

Past Producer • Mercury

Hughes - Bradbury

Past Producer • Mercury

Joyce

Past Producer • Mercury

Mirabel

Past Producer • Mercury

Plymouth

Past Producer • Mercury

Chicago

Past Producer • Mercury

Great Western

Producer • Mercury

Helen

Past Producer • Mercury

Hays

Past Producer • Mercury

Jewess

Past Producer • Mercury

Juanita

Occurrence • Mercury

Midway

Past Producer • Mercury

Maypole

Occurrence • Mercury

Research

Past Producer • Mercury

Wall Street

Past Producer • Mercury

Middletown

Occurrence •

Copsey Claims

Producer • Chromium

Unnamed Prospects

Occurrence • Chromium

Borax Lake

Past Producer • Boron-Borates, Halite

Last Chance

Producer • Manganese

Liberty Strike

Producer • Manganese

Unknown

Occurrence • Chromium

Unknown

Occurrence • Mercury

Unknown

Occurrence • Mercury

Unknown

Occurrence • Mercury

Unknown

Occurrence • Chromium

Unknown

Occurrence • Chromium

Ellis Ranch

Occurrence • Chromium

Unknown

Occurrence • Chromium

Unknown

Occurrence • Mercury

Unknown

Occurrence •

Unknown

Occurrence • Mercury

Mastick Ranch Deposits

Occurrence • Chromium

Magnola Mine

Occurrence • Chromium

Unknown

Occurrence • Mercury

Unknown

Occurrence • Mercury

Downey Estate

Occurrence •

Sutro Mine

Occurrence • Chromium

Harp and Sons Ranch Deposits.

Occurrence • Chromium

Unknown

Occurrence • Stone, Dimension

Unknown

Occurrence • Stone, Dimension

Unknown

Occurrence • Chromium

Rattlesnake

Occurrence •

Unknown

Occurrence •

Dow Prospect

Occurrence •

Poe

Occurrence • Copper

H and G

Prospect •

Herrick Prospect

Prospect •

Witter Springs

Prospect •

Summit

Prospect •

Black Bart Mine

Past Producer • Chromium

Baker

Past Producer • Mercury

Hardister

Past Producer • Mercury

Otto - Bullion

Past Producer • Mercury

Bacon Consolidated

Past Producer • Mercury

Abbott

Producer • Mercury

Von Glahn

Producer • Manganese

Hays Prospect

Producer • Mercury

Smaker Property

Producer • Chromium

Phillips

Producer • Manganese

Glad I Found It Claim

Producer • Chromium

Clear Lake-Sulphur Bank

Producer • Mercury

Chicago Mine

Unknown • Mercury

Arroyo Lobo Claim

Occurrence •

Middletown Pit and Mill

Producer • Sand and Gravel, Construction

Middle Creek Pit and Mill

Producer • Sand and Gravel, Construction

Ebenhauser Prospect

Prospect •

Red Rock & Silver Rock Claims

Unknown • Mercury

Betwixt

Occurrence • Chromium

Chromite Occurrance

Occurrence • Chromium

Midway Mine

Unknown • Mercury

Putah Creek Bar 3

Producer • Sand and Gravel, Construction

Quarry

Unknown • Stone

Unnamed Location

Occurrence • Mercury

Unidentified Pits

Occurrence • Sand and Gravel, Construction

Little Falls Deposit

Occurrence •

Brown Prospect

Unknown • Chromium

Kelsey Creek North Pit

Producer • Sand and Gravel, Construction

Maypole

Unknown • Mercury

Unnamed Location

Unknown • Chromium

Northern Light

Unknown • Mercury

Coleman Pumice

Unknown • Pumice

Unnamed Location

Occurrence • Mercury

Downey Estate Prospect

Occurrence •

Evans Pit

Producer • Sand and Gravel, Construction

Unnamed Location

Prospect • Aluminum

Unnamed Location

Occurrence • Asbestos

Unnamed Location

Occurrence • Calcium

Dow Prospect

Occurrence •

Unnamed Location

Unknown • Chromium

Middle Creek Terrace

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Mercury

Unnamed Location

Occurrence • Chromium

Canary Hill Deposit

Unknown • Sulfur

Unnamed Location

Unknown • Mercury

T-B-M Prospect

Unknown • Gold

Placer Realty Corp. Property

Past Producer • Gold

Unnamed Location

Unknown • Asbestos

Abbott Mine

Producer • Mercury

Ora Hans Prospect

Occurrence •

Otto Mine

Unknown • Mercury

Rainbow Ledge Prospect

Prospect •

Unnamed Location

Unknown • Mercury

Unnamed Location

Unknown • Mercury

Bullion Mine

Unknown • Mercury

Unnamed Location

Unknown • Manganese

Lange Pit and Mill

Producer • Sand and Gravel, Construction

Research Mine

Unknown • Mercury

Kelsey Creek Bar 5

Producer • Sand and Gravel, Construction

Gravelly Valley

Past Producer •

H and G

Unknown • Manganese

Great Western Mine

Unknown • Mercury

Kangaroo Court Mine

Past Producer •

Unnamed Location

Occurrence • Sand and Gravel, Construction

Cabbago Send

Unknown • Chromium

Red Pit

Producer • Pumice

Baxter Prospect

Unknown • Mercury

Thorpe Mine

Unknown • Mercury

Mirabel Mine

Unknown • Mercury

Herman Prospect

Occurrence • Chromium

Utopia Mine

Unknown • Mercury

Anderson Springs

Unknown • Mercury

Hull Mountain Lodge

Unknown • Chromium

Roundtop Mtn Quarry

Producer • Pumice

Gravel Pit

Unknown • Sand and Gravel, Construction

Putah Creek Bar

Producer • Sand and Gravel, Construction

Henry Von Claim

Unknown • Manganese

Mead Prospect

Occurrence •

Marodon Maganese No. 1.

Occurrence • Manganese

Scotts Creek Bar

Producer • Sand and Gravel, Construction

Red Rock Quarry

Producer • Pumice

Unnamed Location

Unknown • Stone, Crushed/Broken

Unnamed Location

Occurrence • Limestone, Dimension

Middleton

Occurrence • Mercury

Cooper and Moore Deposit

Occurrence • Manganese

Middle Creek Bar

Producer • Sand and Gravel, Construction

Mine

Occurrence • Mercury

Unnamed Location

Occurrence • Mercury

Henrys Pit and Mill

Producer • Sand and Gravel, Construction

Big Injun Mine

Unknown • Mercury

Copsey and Moore Property

Unknown • Manganese

Clear Lake Quarry

Past Producer • Stone, Crushed/Broken

Crabtree Hotsprings

Unknown • Geothermal

M and G Claim

Prospect •

Bartlet Springs

Unknown • Diatomite

Spring Hill

Unknown • Manganese

Holmstatt Deposit

Past Producer •

Rattlesnake Deposit

Occurrence •

Clearlake Gem Mining Company

Occurrence • Gemstone

Unnamed Location

Occurrence • Mercury

Unnamed Location

Occurrence • Stone

Auschivitz Property

Unknown • Sulfur

Unnamed Location

Occurrence • Stone

Rich Hill Mine

Occurrence • Mercury

Ellen Pit and Mill

Producer • Sand and Gravel, Construction

Baker Soda Spring

Unknown • Geothermal

Yolo Iron & Steel Co. Lease

Prospect • Iron

Gravel Pits

Unknown • Sand and Gravel, Construction

Holmstedt Property

Prospect • Chromium

Unnamed Location

Occurrence • Tin

Soda Spring

Occurrence • Geothermal

Gravel Pit

Unknown • Sand and Gravel, Construction

Unnamed Location

Occurrence • Chromium

Von Glahn Prospects

Past Producer •

Red Lava Products Quarry

Producer • Pumice

Wall Street Mine

Unknown • Mercury

Pies and Jacobsen Property

Unknown • Manganese

Quarry

Occurrence • Stone

Unnamed Location

Occurrence • Chromium

Gravel Pit

Unknown • Sand and Gravel, Construction

Rodger Hellgren Sand and Gravel

Producer • Sand and Gravel, Construction

Myers Prospect

Occurrence •

Poe

Unknown • Copper

Unknown

Occurrence • Arsenic

Gunn Claims

Occurrence • Chromium

Unknown

Occurrence • Asbestos

Old Dough Claim

Occurrence •

Unknown

Occurrence • Mercury

Unknown

Occurrence • Mercury

Unknown

Occurrence • Chromium

Dunkin Lode Mine and Dunkin Mine

Producer • Mercury

Weiper Mine

Occurrence • Mercury

Lucky Strike Mine

Occurrence • Chromium

Unknown

Occurrence • Mercury

Unknown

Occurrence • Mercury

Betwixt, E. Z., and Riverside Claims

Occurrence • Chromium

Unknown

Occurrence • Asbestos

Unnamed Location

Occurrence • Mercury

Big Chief Mine

Occurrence • Mercury

Konocti Pit and Mill

Producer • Stone

Unnamed Location

Occurrence • Chromium

Coppey Claime

Unknown • Chromium

Unnamed Location

Occurrence • Mercury

Clear Lake Quarry

Producer • Pumice

Harp and Sons Ranch Deposits

Past Producer •

Christienson Tract

Unknown • Copper

Lucitta Mine

Unknown • Mercury

Unnamed Location

Occurrence • Clay

Putah Creek Pit

Producer • Sand and Gravel, Construction

Witter Springs Mine

Past Producer •

Helen Mine

Unknown • Mercury

Copsey

Past Producer •

Gunn Claim

Past Producer •

White Elephant Prospect

Occurrence • Mercury

Unnamed Location

Occurrence • Mercury

Unnamed Location

Unknown • Sand and Gravel, Construction

Long Shot Claim

Occurrence • Manganese

Unnamed Location

Occurrence • Manganese

Unnamed Location

Occurrence • Stone, Crushed/Broken

Unnamed Location

Occurrence • Manganese

Vsto-Bullion Mine

Unknown • Mercury

Dow Prospect

Unknown • Manganese

Weiper Mine

Unknown • Mercury

Hitchcock Brothers Cinders

Producer • Pumice

Putah Creek Plant

Producer • Sand and Gravel, Construction

Colman Prospect

Unknown • Manganese

Copper Prince Mine

Unknown • Copper

Quarry

Unknown • Stone

Hermann Claims

Prospect •

Black Point Claim

Occurrence •

Unnamed Location

Unknown • Copper

Unnamed Location

Occurrence • Mercury

Red Lava Pit and Mill

Producer • Pumice

Soda Creek Bar

Producer • Sand and Gravel, Construction

Hardister

Unknown • Mercury

Red Rock and Sliver Rock

Occurrence • Mercury

Putah Creek Pit and Mill

Producer • Sand and Gravel, Construction

Kelsey Creek Pit

Producer • Sand and Gravel, Construction

Quarry

Unknown • Stone

Shamrock Prospect

Occurrence • Mercury

Black Ranch

Occurrence • Limestone, Dimension

Unnamed Prospects

Occurrence • Chromium

Unnamed Location

Prospect • Mercury

Summit Springs

Unknown • Chromium

Anderson

Unknown • Mercury

Spruce Road Bar

Producer • Sand and Gravel, Construction

Unnamed Location

Unknown • Mercury

Bottle Rock Quarry

Producer • Stone

Immel Property

Unknown • Stone, Crushed/Broken

Phillips

Past Producer •

Middle Creek Bar

Producer • Sand and Gravel, Construction

Red Devil

Occurrence • Chromium

Unnamed Location

Occurrence • Stone

Redington

Past Producer • Mercury

Dunkin Lode Mine

Occurrence • Mercury

Unnamed Location

Occurrence • Mercury

Emmet Jones

Occurrence • Chromium

Butler Claims

Prospect •

Joyce Prospect

Unknown • Mercury

Clearlake Highlands Pit

Producer • Sand and Gravel, Construction

Old Arnold Ranch Bar

Producer • Sand and Gravel, Construction

Sulphur Bank Mine

Unknown • Mercury

Unnamed Prospect

Unknown • Asbestos

Vann Ranch Prospect

Prospect •

Ace Pit and Mill

Past Producer • Sand and Gravel, Construction

Plymouth Mine

Unknown • Mercury

Unnamed Location

Unknown • Mercury

Unnamed Location

Occurrence • Manganese

Quarry

Unknown • Stone

Black Rock

Unknown • Manganese

Herrick Prospect

Prospect •

Konocti Mine

Unknown • Mercury

Enterprise Engineering Company

Past Producer • Mercury

Unnamed Location

Prospect • Chromium

Mastick Ranch Deposit

Occurrence • Chromium

Unnamed Location

Unknown • Chromium

Frazell Pit

Producer • Sand and Gravel, Construction

Young Adams Prospect

Unknown • Chromium

Cartwright Manganese Prospect

Occurrence • Manganese

Konocti Quarry

Producer • Stone, Crushed/Broken

Buckeye

Occurrence • Manganese

Bartels Bros. Deposit

Unknown • Stone, Crushed/Broken

Unnamed Location

Occurrence • Chromium

Black Bart Mine

Past Producer •

Cinder Products Company

Producer • Pumice

S-Bar-S Ranch

Unknown • Diatomite

Robinson Ranch Quarry

Producer • Stone, Crushed/Broken

Adobe Creek Pit

Producer • Sand and Gravel, Construction

Pit

Occurrence • Sand and Gravel, Construction

Sutro Mine

Past Producer •

Jewess Mine

Unknown • Mercury

Marylyne Prospect

Unknown • Asbestos

Seigler Springs

Unknown • Stone

Kims Yard Ii

Producer • Clay

Gordon Springs

Unknown • Mercury

Black Powder Claim

Occurrence •

Lucky Strike Mine

Past Producer •

Unnamed Location

Unknown • Mercury

Turkey Run Mine

Occurrence • Mercury

Northern Light Prospect

Prospect • Mercury

Hughes Bradbary

Unknown • Mercury

Unnamed Location

Occurrence • Sand and Gravel, Construction

Popp and Nechelini Claim

Past Producer •

Cobb Mountain Prospect

Prospect •

Bell Deposit

Unknown •

Hays Prospect

Unknown • Mercury

Juanita

Unknown • Mercury

Cache Creek Pit

Producer • Sand and Gravel, Construction

Unnamed Location

Occurrence • Chromium

Elliot Prospect

Prospect •

Unnamed Location

Occurrence • Mercury

Unnamed Location

Unknown • Chromium

Bartlett Springs

Occurrence • Stone, Crushed/Broken

Smaker Property

Occurrence • Chromium

La Bree

Prospect •

Schaffer

Unknown • Garnet

Highway 20 Site

Producer • Sand and Gravel, Construction

Gravel Pit

Unknown • Sand and Gravel, Construction

Herndon Claim

Prospect •

Gravel Pit

Unknown • Sand and Gravel, Construction

Unnamed Location

Occurrence • Mercury

Overlook Claim

Occurrence •

S-Bar-S Quarry

Producer • Pumice

Clearlake Lava Pit and Mill

Producer • Pumice

Magnola Mine

Occurrence • Chromium

Old Dough Claim

Occurrence •

Liberty Strike

Unknown • Manganese

Snaker Property

Unknown • Chromium

Baker Mine

Unknown • Mercury

Wispering Pines

Occurrence • Chromium

Camp and Yates Grave

Occurrence • Sand and Gravel, Construction

Copany and Jones Prospect

Unknown • Asbestos

Summit Deposit

Prospect •

Lowdermilk Pit and Mill

Producer • Sand and Gravel, Construction

Rose Ranch

Prospect •

Unnamed Location

Occurrence • Stone, Crushed/Broken