Mines in Lake County, California

Lake County, California has 434 mine and mineral deposit locations documented in federal records from the USGS and MSHA. 63 of these are currently active mining operations. The most commonly recorded commodity is mercury, with 114 sites. The table below lists all recorded mines in the county with links to individual site details.

All Mines in Lake County

Mine	Commodity	Type	Status	Source
Clearlake Lava	Construction Sand and Gravel	Surface	Active	MSHA
Dna Ridge Rock	Construction Sand and Gravel	Surface	Active	MSHA
Highway 175 Quarry	Construction Sand and Gravel	Surface	Active	MSHA
Pt Lakeview Rock & Redi Mix	Construction Sand and Gravel	Surface	Active	MSHA
S Bar S Quarry	Crushed, Broken Stone NEC	Surface	Active	MSHA
Adobe Creek Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Bottle Rock Quarry	Stone	Surface	Producer	MRDS
Cache Creek Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Canary Hill Deposit	Sulfur		Producer	MRDS
Cinder Products Company	Pumice	Surface	Producer	MRDS
Clear Lake Quarry	Pumice	Surface	Producer	MRDS
Clear Lake-Sulphur Bank	Mercury		Producer	MRDS
Clearlake Highlands Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Clearlake Lava Pit and Mill	Pumice	Surface	Producer	MRDS
Copsey Claims	Chromium		Producer	MRDS
Dunkin Lode Mine and Dunkin Mine	Mercury		Producer	MRDS
Ellen Pit and Mill	Sand and Gravel, Construction	Surface	Producer	MRDS
Evans Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Frazell Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Glad I Found It Claim	Chromium		Producer	MRDS
Gravelly Valley	Manganese		Producer	MRDS
Hays Prospect	Mercury		Producer	MRDS
Henrys Pit and Mill	Sand and Gravel, Construction	Surface	Producer	MRDS
Highway 20 Site	Sand and Gravel, Construction	Surface	Producer	MRDS
Hitchcock Brothers Cinders	Pumice	Surface	Producer	MRDS
Immel Property	Mineral Pigments		Producer	MRDS
Kelsey Creek Bar 5	Sand and Gravel, Construction	Surface	Producer	MRDS
Kelsey Creek North Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Kelsey Creek Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Kims Yard Ii	Clay	Surface	Producer	MRDS
Konocti Pit and Mill	Stone	Surface	Producer	MRDS
Konocti Quarry	Stone, Crushed/Broken	Surface	Producer	MRDS
Lange Pit and Mill	Sand and Gravel, Construction	Surface	Producer	MRDS
Last Chance	Manganese		Producer	MRDS
Liberty Strike	Manganese		Producer	MRDS
Lowdermilk Pit and Mill	Sand and Gravel, Construction	Surface	Producer	MRDS
Middle Creek Bar	Sand and Gravel, Construction	Surface	Producer	MRDS
Middle Creek Bar	Sand and Gravel, Construction	Surface	Producer	MRDS
Middle Creek Pit and Mill	Sand and Gravel, Construction	Surface	Producer	MRDS
Middle Creek Terrace	Sand and Gravel, Construction	Surface	Producer	MRDS
Middletown Pit and Mill	Sand and Gravel, Construction	Surface	Producer	MRDS
Old Arnold Ranch Bar	Sand and Gravel, Construction	Surface	Producer	MRDS
Phillips	Manganese		Producer	MRDS
Putah Creek Bar	Sand and Gravel, Construction	Surface	Producer	MRDS
Putah Creek Bar 3	Sand and Gravel, Construction	Surface	Producer	MRDS
Putah Creek Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Putah Creek Pit and Mill	Sand and Gravel, Construction	Surface	Producer	MRDS
Putah Creek Plant	Sand and Gravel, Construction	Surface	Producer	MRDS
Red Lava Pit and Mill	Pumice	Surface	Producer	MRDS
Red Lava Products Quarry	Pumice	Surface	Producer	MRDS
Red Pit	Pumice	Surface	Producer	MRDS
Red Rock Quarry	Pumice	Surface	Producer	MRDS
Robinson Ranch Quarry	Stone, Crushed/Broken	Surface	Producer	MRDS
Rodger Hellgren Sand and Gravel	Sand and Gravel, Construction	Surface	Producer	MRDS
Roundtop Mtn Quarry	Pumice	Surface	Producer	MRDS
S-Bar-S Quarry	Pumice	Surface	Producer	MRDS
Scotts Creek Bar	Sand and Gravel, Construction	Surface	Producer	MRDS
Smaker Property	Chromium		Producer	MRDS
Smythe			Producer	MRDS
Soda Creek Bar	Sand and Gravel, Construction	Surface	Producer	MRDS
Spruce Road Bar	Sand and Gravel, Construction	Surface	Producer	MRDS
Unknown	Mercury		Producer	MRDS
Von Glahn	Manganese		Producer	MRDS
Abbott	Mercury		Past Producer	MRDS
Ace Pit and Mill	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Anderson	Mercury	Underground	Unknown	MRDS
Anderson Springs	Mercury		Past Producer	MRDS
Anderson Springs	Mercury		Unknown	MRDS
Arroyo Lobo			Occurrence	MRDS
Arroyo Lobo Claim			Occurrence	MRDS
Auschivitz Property	Sulfur	Surface	Unknown	MRDS
Auschwitz Property	Sulfur		Occurrence	MRDS
Auschwitz Property	Sulfur		Occurrence	MRDS
Bacon Consolidated	Mercury		Past Producer	MRDS
Baker	Mercury		Past Producer	MRDS
Baker Mine	Mercury	Underground	Unknown	MRDS
Baker Soda Spring	Geothermal	Well	Unknown	MRDS
Bartels Bros. Deposit	Mineral Pigments		Occurrence	MRDS
Bartels Bros. Deposit	Stone, Crushed/Broken	Surface	Unknown	MRDS
Bartlet Springs	Diatomite	Surface	Unknown	MRDS
Bartlett Springs	Stone, Crushed/Broken		Occurrence	MRDS
Baxter	Mercury		Past Producer	MRDS
Baxter Prospect	Mercury	Underground	Unknown	MRDS
Baxter Prospect G. L. Hildebrand	Mercury		Occurrence	MRDS
Bell Deposit			Occurrence	MRDS
Bell Deposit			Unknown	MRDS
Betwixt	Chromium		Occurrence	MRDS
Betwixt, E. Z., and Riverside Claims	Chromium		Occurrence	MRDS
Big Borax Lake	Stone		Occurrence	MRDS
Big Chief	Mercury		Past Producer	MRDS
Big Chief Mine	Mercury		Occurrence	MRDS
Big Injun	Mercury		Past Producer	MRDS
Big Injun Mine	Mercury	Surface	Unknown	MRDS
Black Bart Mine	Chromium		Past Producer	MRDS
Black Bart Mine		Surface	Past Producer	MRDS
Black Point			Prospect	MRDS
Black Point Claim			Occurrence	MRDS
Black Powder			Occurrence	MRDS
Black Powder Claim			Occurrence	MRDS
Black Ranch	Limestone, Dimension		Occurrence	MRDS
Black Rock	Manganese	Surface	Unknown	MRDS
Borax Lake	Boron-Borates, Halite		Past Producer	MRDS
Brown Prospect	Chromium		Occurrence	MRDS
Brown Prospect	Chromium	Underground	Unknown	MRDS
Buckeye	Manganese		Occurrence	MRDS
Buckeye and Red Bud	Manganese		Occurrence	MRDS
Bull Mountain Lode	Chromium		Occurrence	MRDS
Bullion	Mercury		Past Producer	MRDS
Bullion Mine	Mercury	Underground	Unknown	MRDS
Butler Claims	Chromium		Occurrence	MRDS
Butler Claims		Surface	Prospect	MRDS
Cabbage Head Or Fir Root Ridge Claim	Chromium		Occurrence	MRDS
Cabbago Send	Chromium	Underground	Unknown	MRDS
Camp and Yates Grave	Sand and Gravel, Construction		Occurrence	MRDS
Canary Hill Deposit	Sulfur	Surface	Unknown	MRDS
Cartwright Manganese Prospect	Manganese	Surface	Occurrence	MRDS
Chicago	Mercury		Past Producer	MRDS
Chicago Mine	Mercury	Underground	Unknown	MRDS
Christianson Tract			Occurrence	MRDS
Christienson Tract	Copper	Underground	Unknown	MRDS
Chromite Occurrance	Chromium	Surface	Occurrence	MRDS
Chromite Occurrence	Chromium		Occurrence	MRDS
Clear Lake Gem Mining Company Or & Near Perini Hill	Gemstone		Occurrence	MRDS
Clear Lake Quarry	Stone, Crushed/Broken	Surface	Past Producer	MRDS
Clearlake Cinder Chip Co.	Pumice	Surface	Abandoned	MSHA
Clearlake Gem Mining Company	Gemstone		Occurrence	MRDS
Cobb Mountain Oyster Rock			Occurrence	MRDS
Cobb Mountain Prospect		Surface	Prospect	MRDS
Coleman Prospect			Occurrence	MRDS
Coleman Pumice	Pumice	Surface	Unknown	MRDS
Coleman Pumice and Volcanic Cinder Deposits	Pumice		Occurrence	MRDS
Colman Prospect	Manganese	Surface	Unknown	MRDS
Cooper and Moore Deposit	Manganese		Occurrence	MRDS
Copany and Jones Prospect	Asbestos	Surface	Unknown	MRDS
Copper Prince	Copper		Past Producer	MRDS
Copper Prince Mine	Copper	Surface	Unknown	MRDS
Coppey Claime	Chromium	Surface	Unknown	MRDS
Copsey		Surface-Underground	Past Producer	MRDS
Copsey and Jones Prospect	Asbestos		Occurrence	MRDS
Copsey and Moore Property	Manganese		Unknown	MRDS
Copsey and Moore Prospect			Occurrence	MRDS
Crabtree Hotsprings	Geothermal	Well	Unknown	MRDS
Diamond J Corp	Construction Sand and Gravel	Surface	Abandoned	MSHA
Diamond J Ranch	Construction Sand and Gravel	Surface	Abandoned	MSHA
Dow Property	Magnesite		Occurrence	MRDS
Dow Prospect			Occurrence	MRDS
Dow Prospect			Occurrence	MRDS
Dow Prospect	Manganese	Surface	Unknown	MRDS
Downey Estate			Occurrence	MRDS
Downey Estate Prospect			Occurrence	MRDS
Dunkin Lode Mine	Mercury		Occurrence	MRDS
Ebenhauser			Occurrence	MRDS
Ebenhauser Prospect		Underground	Prospect	MRDS
Elliot			Occurrence	MRDS
Elliot Prospect		Surface	Prospect	MRDS
Ellis Ranch	Chromium		Occurrence	MRDS
Emmet Jones	Chromium		Occurrence	MRDS
Enterprise Engineering Company	Mercury	Placer	Past Producer	MRDS
Gordon Springs	Mercury	Surface	Unknown	MRDS
Gordon Springs Deposits	Chromium		Occurrence	MRDS
Gravel	Stone		Occurrence	MRDS
Gravel Pit	Sand and Gravel, Construction	Surface	Unknown	MRDS
Gravel Pit	Sand and Gravel, Construction	Surface	Unknown	MRDS
Gravel Pit	Sand and Gravel, Construction	Surface	Unknown	MRDS
Gravel Pit	Sand and Gravel, Construction	Surface	Unknown	MRDS
Gravel Pit	Sand and Gravel, Construction	Surface	Unknown	MRDS
Gravel Pits	Sand and Gravel, Construction	Surface	Unknown	MRDS
Gravelly Valley		Surface-Underground	Past Producer	MRDS
Great Western	Mercury	Surface-Underground	Past Producer	MRDS
Gunn Claim		Surface	Past Producer	MRDS
Gunn Claims	Chromium		Occurrence	MRDS
H and G			Prospect	MRDS
H and G	Manganese		Unknown	MRDS
Hardister	Mercury		Past Producer	MRDS
Hardister	Mercury		Unknown	MRDS
Harp and Sons Ranch Deposits		Surface	Past Producer	MRDS
Harp and Sons Ranch Deposits.	Chromium		Occurrence	MRDS
Hays	Mercury		Past Producer	MRDS
Hays Prospect	Mercury	Surface	Unknown	MRDS
Helen	Mercury		Past Producer	MRDS
Helen Mine	Mercury	Surface	Unknown	MRDS
Henry Von Claim	Manganese	Surface	Unknown	MRDS
Herman			Occurrence	MRDS
Herman Prospect	Chromium		Occurrence	MRDS
Hermann Claims		Surface	Prospect	MRDS
Herndon Claim		Surface	Prospect	MRDS
Herndon Manganese No. 1			Prospect	MRDS
Herrick Prospect			Prospect	MRDS
Herrick Prospect		Surface	Prospect	MRDS
Hidden Valley Sand & Gravel	Construction Sand and Gravel	Surface	Abandoned	MSHA
Holmstatt Deposit		Surface	Past Producer	MRDS
Holmstedt Deposits	Chromium		Occurrence	MRDS
Holmstedt Property	Chromium	Surface	Prospect	MRDS
Hughes - Bradbury	Mercury		Past Producer	MRDS
Hughes Bradbary	Mercury	Surface	Unknown	MRDS
Hull Mountain Lodge	Chromium	Surface	Unknown	MRDS
Immel Property	Mineral Pigments		Past Producer	MRDS
Immel Property	Stone, Crushed/Broken	Surface	Unknown	MRDS
Jewess	Mercury		Past Producer	MRDS
Jewess Mine	Mercury	Underground	Unknown	MRDS
Joyce	Mercury		Past Producer	MRDS
Joyce Prospect	Mercury	Underground	Unknown	MRDS
Juanita	Mercury		Occurrence	MRDS
Juanita	Mercury		Unknown	MRDS
Kangaroo Court Mine	Chromium		Occurrence	MRDS
Kangaroo Court Mine		Surface	Past Producer	MRDS
Kelsey Creek Mill	Construction Sand and Gravel	Surface	Intermittent	MSHA
Kelseyville	Construction Sand and Gravel	Surface	Abandoned	MSHA
Konocti Mine	Mercury	Surface	Unknown	MRDS
Konocti Mine Bell	Mercury		Occurrence	MRDS
La Bree		Surface	Prospect	MRDS
La Bree Claim			Occurrence	MRDS
Liberty Strike	Manganese	Underground	Unknown	MRDS
Little Falls			Occurrence	MRDS
Little Falls Deposit			Occurrence	MRDS
Long Shot Claim	Manganese		Occurrence	MRDS
Lucitta	Mercury		Past Producer	MRDS
Lucitta Mine	Mercury	Underground	Unknown	MRDS
Lucky Strike Mine	Chromium		Occurrence	MRDS
Lucky Strike Mine		Surface-Underground	Past Producer	MRDS
M and G Claim		Surface	Prospect	MRDS
Middle Creek Facility	Sand, Industrial NEC	Surface	Abandoned	MSHA
Magnola Mine	Chromium		Occurrence	MRDS
Magnola Mine	Chromium		Occurrence	MRDS
Marodon Maganese No. 1.	Manganese		Occurrence	MRDS
Marylyne Prospect	Asbestos		Occurrence	MRDS
Marylyne Prospect	Asbestos	Surface	Unknown	MRDS
Mastick Ranch Deposit	Chromium		Occurrence	MRDS
Mastick Ranch Deposits	Chromium		Occurrence	MRDS
Maypole	Mercury		Occurrence	MRDS
Maypole	Mercury		Unknown	MRDS
McLaughlin Mine	Gold Ore	Surface	Abandoned	MSHA
Mead			Occurrence	MRDS
Mead Prospect			Occurrence	MRDS
Middleton	Mercury		Occurrence	MRDS
Middleton Middletown	Mercury		Occurrence	MRDS
Middletown			Occurrence	MRDS
Midway	Mercury		Past Producer	MRDS
Midway Mine	Mercury	Surface	Unknown	MRDS
Mine	Mercury		Occurrence	MRDS
Mine	Mercury		Occurrence	MRDS
Mirabel Mine	Mercury	Surface	Past Producer	MRDS
Myers Prospect			Occurrence	MRDS
Myers Red Bay			Occurrence	MRDS
Northern Light	Mercury	Underground	Unknown	MRDS
Northern Light Prospect	Mercury		Prospect	MRDS
Old Dough Claim			Occurrence	MRDS
Old Dough Claim			Occurrence	MRDS
Ora Hans			Occurrence	MRDS
Ora Hans Prospect			Occurrence	MRDS
Otto - Bullion	Mercury		Past Producer	MRDS
Otto Mine	Mercury	Underground	Unknown	MRDS
Overlook			Occurrence	MRDS
Overlook Claim			Occurrence	MRDS
Phillips		Surface	Past Producer	MRDS
Pies and Jacobsen Property	Manganese	Underground	Unknown	MRDS
Pit	Sand and Gravel, Construction		Occurrence	MRDS
Placer Realty Corp. Property	Gold	Placer	Past Producer	MRDS
Plymouth	Mercury		Past Producer	MRDS
Plymouth Mine	Mercury	Underground	Unknown	MRDS
Poe	Copper		Occurrence	MRDS
Poe	Copper	Underground	Unknown	MRDS
Popp and Nechelini Claim		Surface	Past Producer	MRDS
Popp and Nichelini Claim	Chromium		Occurrence	MRDS
Prospect	Asbestos		Occurrence	MRDS
Quarry	Stone	Surface	Unknown	MRDS
Quarry	Stone		Occurrence	MRDS
Quarry	Stone	Surface	Unknown	MRDS
Quarry	Stone	Surface	Unknown	MRDS
Quarry	Stone	Surface	Unknown	MRDS
Rainbow Ledge			Occurrence	MRDS
Rainbow Ledge Prospect		Surface	Prospect	MRDS
Rattlesnake			Occurrence	MRDS
Rattlesnake Deposit			Occurrence	MRDS
Red Devil	Chromium		Occurrence	MRDS
Red Devil Claim	Chromium		Occurrence	MRDS
Red Elephant	Mercury		Past Producer	MRDS
Red Rock & Silver Rock Claims	Mercury	Surface	Unknown	MRDS
Red Rock and Sliver Rock	Mercury		Occurrence	MRDS
Redington	Mercury	Surface-Underground	Past Producer	MRDS
Research	Mercury		Past Producer	MRDS
Research Mine	Mercury	Underground	Unknown	MRDS
Reynolds			Occurrence	MRDS
Rich Hill Mine	Mercury		Occurrence	MRDS
Rich Hill Mine Hardester, Bucksnorter	Mercury		Occurrence	MRDS
Rose Ranch			Prospect	MRDS
Rose Ranch		Surface	Prospect	MRDS
S-Bar-S Ranch	Diamond		Occurrence	MRDS
S-Bar-S Ranch	Diatomite	Surface	Unknown	MRDS
Schaffer	Garnet	Surface	Unknown	MRDS
Schaffer Prospect	Chromium		Occurrence	MRDS
Seigler Springs	Stone, Dimension		Occurrence	MRDS
Seigler Springs	Stone	Surface	Unknown	MRDS
Shamrock			Occurrence	MRDS
Shamrock Prospect	Mercury		Occurrence	MRDS
Smaker Property	Chromium		Occurrence	MRDS
Smythe Manganese Prospect			Prospect	MRDS
Smythe Or Herman Prospect	Chromium		Occurrence	MRDS
Snaker Property	Chromium	Surface	Unknown	MRDS
Soda Spring	Geothermal	Geothermal	Occurrence	MRDS
Spring Hill			Occurrence	MRDS
Spring Hill	Manganese	Surface	Unknown	MRDS
Sulphur Bank Mine	Sulfur, Mercury	Surface-Underground	Past Producer	MRDS
Summit			Prospect	MRDS
Summit Deposit		Surface	Prospect	MRDS
Summit Springs	Chromium		Unknown	MRDS
Sutro Mine	Chromium		Occurrence	MRDS
Sutro Mine		Surface-Underground	Past Producer	MRDS
T -B-M Prospect	Gold		Occurrence	MRDS
T-B-M Prospect	Gold	Surface	Unknown	MRDS
Thorne	Mercury		Past Producer	MRDS
Thorpe Mine	Mercury	Underground	Unknown	MRDS
Turkey Run Mine	Mercury		Occurrence	MRDS
Turkey Run Mine	Mercury		Occurrence	MRDS
Unidentified Pits	Sand and Gravel, Construction		Occurrence	MRDS
Unknown	Asbestos		Occurrence	MRDS
Unknown	Mineral Pigments		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown	Manganese		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown	Stone, Dimension		Occurrence	MRDS
Unknown	Stone, Dimension		Occurrence	MRDS
Unknown	Stone, Dimension		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown	Stone, Dimension		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Stone, Dimension		Occurrence	MRDS
Unknown	Stone, Dimension		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Stone, Dimension		Occurrence	MRDS
Unknown	Asbestos		Occurrence	MRDS
Unknown	Gold, Silver		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Arsenic		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown	Stone, Dimension		Occurrence	MRDS
Unknown	Stone, Crushed/Broken		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown	Stone, Crushed/Broken		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown			Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown	Stone, Dimension		Occurrence	MRDS
Unknown	Mercury		Occurrence	MRDS
Unknown	Stone, Dimension		Occurrence	MRDS
Unknown	Chromium		Occurrence	MRDS
Unknown			Occurrence	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Chromium	Surface	Unknown	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Aluminum		Prospect	MRDS
Unnamed Location	Asbestos		Occurrence	MRDS
Unnamed Location	Calcium		Occurrence	MRDS
Unnamed Location	Chromium	Surface	Unknown	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Chromium		Occurrence	MRDS
Unnamed Location	Mercury	Surface	Unknown	MRDS
Unnamed Location	Asbestos	Surface	Unknown	MRDS
Unnamed Location	Mercury	Underground	Unknown	MRDS
Unnamed Location	Mercury	Underground	Unknown	MRDS
Unnamed Location	Manganese	Surface	Unknown	MRDS
Unnamed Location	Sand and Gravel, Construction		Occurrence	MRDS
Unnamed Location	Stone, Crushed/Broken		Unknown	MRDS
Unnamed Location	Limestone, Dimension		Occurrence	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Stone		Occurrence	MRDS
Unnamed Location	Stone		Occurrence	MRDS
Unnamed Location	Tin		Occurrence	MRDS
Unnamed Location	Chromium		Occurrence	MRDS
Unnamed Location	Chromium		Occurrence	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Chromium		Occurrence	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Clay		Occurrence	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Sand and Gravel, Construction	Surface	Unknown	MRDS
Unnamed Location	Manganese		Occurrence	MRDS
Unnamed Location	Stone, Crushed/Broken		Occurrence	MRDS
Unnamed Location	Manganese		Occurrence	MRDS
Unnamed Location	Copper	Surface	Unknown	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Mercury		Prospect	MRDS
Unnamed Location	Mercury	Underground	Unknown	MRDS
Unnamed Location	Stone		Occurrence	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Mercury	Underground	Unknown	MRDS
Unnamed Location	Manganese		Occurrence	MRDS
Unnamed Location	Chromium		Prospect	MRDS
Unnamed Location	Chromium	Surface	Unknown	MRDS
Unnamed Location	Chromium		Occurrence	MRDS
Unnamed Location	Mercury	Underground	Unknown	MRDS
Unnamed Location	Sand and Gravel, Construction		Occurrence	MRDS
Unnamed Location	Chromium		Occurrence	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Chromium	Underground	Unknown	MRDS
Unnamed Location	Mercury		Occurrence	MRDS
Unnamed Location	Stone, Crushed/Broken		Occurrence	MRDS
Unnamed Prospect	Asbestos	Surface	Unknown	MRDS
Unnamed Prospects	Chromium		Occurrence	MRDS
Unnamed Prospects	Chromium		Occurrence	MRDS
Utopia	Mercury		Past Producer	MRDS
Utopia Mine	Mercury	Surface	Unknown	MRDS
Vann Ranch Middle Creek, Black Rock, Grizzly Canyon			Prospect	MRDS
Vann Ranch Prospect		Surface-Underground	Prospect	MRDS
Von Glahn Prospects		Surface	Past Producer	MRDS
Vsto-Bullion Mine	Mercury	Surface	Unknown	MRDS
Wall Street	Mercury		Past Producer	MRDS
Wall Street Mine	Mercury	Surface	Unknown	MRDS
Weiper Mine	Mercury		Occurrence	MRDS
Weiper Mine	Mercury	Surface	Unknown	MRDS
Whispering Pines Prospect	Chromium		Occurrence	MRDS
White Elephant			Occurrence	MRDS
White Elephant Prospect	Mercury		Occurrence	MRDS
Wispering Pines	Chromium		Occurrence	MRDS
Witter Springs			Prospect	MRDS
Witter Springs Mine		Surface	Past Producer	MRDS
Yolo Iron & Steel Co. Lease	Iron		Prospect	MRDS
Young Adams Prospect	Chromium		Occurrence	MRDS
Young Adams Prospect	Chromium	Surface	Unknown	MRDS