|
Mine
|
County
|
|
C - CM - 25
|
Montrose
|
|
C - G - 26
|
Mesa
|
|
C - JD - 6
|
Montrose
|
|
C - SR - 10
|
San Miguel
|
|
C - SR - 16 A
|
San Miguel
|
|
C & C Drilling
|
San Miguel
|
|
C & F
|
La Plata
|
|
C & H Mining Company
|
San Miguel
|
|
C & K Drilling Company
|
San Miguel
|
|
C- JD - 5
|
Montrose
|
|
C. B.
|
Clear Creek
|
|
C. F. & I Water Tunnel
|
Fremont
|
|
C. F. C. & Moonbeam
|
Montrose
|
|
C. H. Mining Company
|
Ouray
|
|
C. J. Dold Mining
|
Lake
|
|
C. K. & N. Mine
|
Teller
|
|
C. O. D. Mine
|
Teller
|
|
C. P. Molybdenum Corporation
|
Mesa
|
|
C. R. Conover & Brothers
|
Chaffee
|
|
C. W. A. Project No. 503 - Rock for Platte River Rip-Rap
|
Jefferson
|
|
C-a Tract
|
Rio Blanco
|
|
Cabin Creek
|
Clear Creek
|
|
Cabinet Group
|
Summit
|
|
Cabinsite Matchless No. 10
|
Gilpin
|
|
Caburg Mining Company
|
Hinsdale
|
|
Caddo Mining
|
Clear Creek
|
|
Caddoa Reservoir Project
|
Bent
|
|
Cadiz Mining
|
Gilpin
|
|
Cady Mines Company
|
Lake
|
|
Calamine Mine
|
San Miguel
|
|
Calamity Creek
|
Mesa
|
|
Calamity Group
|
Mesa
|
|
Calco
|
Mesa
|
|
Caldona Mine
|
Gilpin
|
|
Caldora Mine
|
Park
|
|
Caledonia
|
Teller
|
|
Caledonia Mine
|
Boulder
|
|
Caledonia Mine
|
San Juan
|
|
Caledonia No. 2
|
Gilpin
|
|
Calhoun Mine
|
Gilpin
|
|
California
|
Dolores
|
|
California
|
Saguache
|
|
California - Hidden Treasure
|
Gilpin
|
|
California Gulch Shaft
|
Lake
|
|
California Mine
|
Boulder
|
|
California Mine
|
Hinsdale
|
|
Callahan Holdings
|
Garfield
|
|
Calliope Mine
|
Ouray
|
|
Calmett Tunnel at Ilse
|
Custer
|
|
Calumet No. 2
|
Huerfano
|
|
Calvert No. 3
|
Montrose
|
|
Calvin Mine
|
Clear Creek
|
|
Camel No. 6
|
Montrose
|
|
Cameo
|
Mesa
|
|
Cameron Mine
|
Teller
|
|
Camoose
|
Montrose
|
|
Camp Bird
|
Clear Creek
|
|
Camp Bird Mine
|
Gunnison
|
|
Camp Bird Mine
|
Ouray
|
|
Camp Caywood
|
Mesa
|
|
Camp Creek
|
El Paso
|
|
Camp Creek Mining & Milling Company
|
Gunnison
|
|
Campbell Refining
|
Garfield
|
|
Campbell Tunnel
|
Routt
|
|
Canadian Strip
|
Jackson
|
|
Canandaigua Mine
|
Gilpin
|
|
Cannon Diamond Drilling Company
|
Mesa
|
|
Cannon Drilling Company
|
Montrose
|
|
Canon Black Diamond
|
Fremont
|
|
Canon Gypsum
|
Fremont
|
|
Canon Liberty No. 3
|
Fremont
|
|
Canon Mining & Milling Company
|
Custer
|
|
Canon Monarch-Dorchester No. 1
|
Fremont
|
|
Canon National
|
Fremont
|
|
Canon Zenith
|
Fremont
|
|
Canopus
|
Montrose
|
|
Canterbury Tunnel
|
Lake
|
|
Canyon Claim
|
San Miguel
|
|
Canyon Claims
|
Montrose
|
|
Canyon No. 7
|
Montrose
|
|
Cap Rock
|
Fremont
|
|
Cap Rock
|
Jackson
|
|
Cape Cod Mine
|
Gilpin
|
|
Capella
|
Montrose
|
|
Capitol
|
Clear Creek
|
|
Capitol City
|
Hinsdale
|
|
Capitol Prize Mine
|
Clear Creek
|
|
Capitol Prize Mining & Tunnel Company
|
Clear Creek
|
|
Carbonate King
|
Park
|
|
Carbonate Mine & Mill
|
Summit
|
|
Carbonate Queen
|
Teller
|
|
Carbonero Mine
|
San Miguel
|
|
Carbonite King Gold Mining & Milling Company
|
Pueblo
|
|
Carbro
|
Mesa
|
|
Cardigan Mine
|
Clear Creek
|
|
Cardinal
|
Routt
|
|
Cardinal Tunnel
|
Teller
|
|
Carestia Strip
|
Fremont
|
|
Carfield Mine
|
Boulder
|
|
Caribeau Mine
|
San Miguel
|
|
Caribou Mine
|
Boulder
|
|
Carlson Brothers
|
Clear Creek
|
|
Carlton
|
Pitkin
|
|
Carlton Tunnel
|
Lake
|
|
Carlton Tunnel
|
Teller
|
|
Carmack Drilling Company
|
Mesa
|
|
Carmack Drilling Company
|
Montrose
|
|
Carmack Potash
|
Mesa
|
|
Carnation
|
San Miguel
|
|
Carnotite Production Corporation
|
Mesa
|
|
Carnotite Products Company
|
Boulder
|
|
Carnotite Trust Company
|
Montrose
|
|
Carolina Company
|
Gilpin
|
|
Carpathia
|
Montrose
|
|
Carpenter
|
Summit
|
|
Carpenter Mine
|
San Miguel
|
|
Carper Shaft
|
Teller
|
|
Carr Mine
|
Gilpin
|
|
Carribeau Mine & Mill
|
San Miguel
|
|
Carroll Mine
|
Gilpin
|
|
Carter & Raymond
|
Gunnison
|
|
Carter Mine
|
Gunnison
|
|
Cash Mine
|
Larimer
|
|
Cash Mine, Gold Hill District
|
Boulder
|
|
Cash Mine, Magnolia District
|
Boulder
|
|
Cashier
|
Summit
|
|
Cashier Gold Mining
|
Gilpin
|
|
Cashier Mine
|
San Juan
|
|
Cashin Mine
|
Montrose
|
|
Casino Lease
|
Mineral
|
|
Castle Gulch Mine
|
Boulder
|
|
Castle Mine
|
Boulder
|
|
Castle View Mine
|
Lake
|
|
Castleton Mine
|
Clear Creek
|
|
Catalpa Mining
|
Lake
|
|
Cathy Mine
|
Lake
|
|
Cave Canyon Lode
|
Mesa
|
|
Cavenaugh Property
|
Jefferson
|
|
Caylor
|
Park
|
|
C-b Tract
|
Rio Blanco
|
|
Cebolla Creek No. 1 & No. 2
|
Gunnison
|
|
Ceciel & Betty Jeane Lode
|
San Miguel
|
|
Cecil & Betty Jeane Company
|
Summit
|
|
Cedar Canon Strip
|
Fremont
|
|
Cedar Point
|
Mesa
|
|
Cedar Ridge Mine
|
San Miguel
|
|
Celestial Extension Mine
|
Boulder
|
|
Celestial Mine
|
Boulder
|
|
Cement Creek Leasing Company
|
San Juan
|
|
Centennial
|
Park
|
|
Centennial
|
San Miguel
|
|
Centennial & Bismarck Group
|
Boulder
|
|
Centennial Mine
|
Clear Creek
|
|
Central Colorado Gold Mining Company
|
Saguache
|
|
Central Consolidated Tunnel Mining & Milling Company
|
Clear Creek
|
|
Central Uranium & Milling
|
Gilpin
|
|
Centurion Tunnel
|
Clear Creek
|
|
Century Tunnel
|
Mesa
|
|
Cervi Lease
|
Jefferson
|
|
C-G-26
|
Mesa
|
|
Chaffee County Fluorspar
|
Chaffee
|
|
Chaffee Mine
|
Gilpin
|
|
Chain O' Mines
|
Gilpin
|
|
Challenge Mine
|
Clear Creek
|
|
Chama
|
Mineral
|
|
Champagne
|
Park
|
|
Champion
|
Hinsdale
|
|
Champion Claim
|
Teller
|
|
Champion Gladiator
|
Boulder
|
|
Champion Gold Mining Company
|
Teller
|
|
Champion Mine
|
Clear Creek
|
|
Champion Mine
|
Eagle
|
|
Champion Mine
|
Gilpin
|
|
Champion Mine
|
San Juan
|
|
Champion Mining Company
|
Mineral
|
|
Champion Shale & Refining Company
|
Garfield
|
|
Chancellor Mine
|
Boulder
|
|
Chandler
|
Rio Grande
|
|
Charity Mine
|
Boulder
|
|
Charles Campbell Lease
|
Mineral
|
|
Charlotte No. 1
|
San Miguel
|
|
Charter Oak Mine
|
Clear Creek
|
|
Chase Mine
|
Gilpin
|
|
Chatfield Dam
|
Jefferson
|
|
Chatt Group
|
Teller
|
|
Chattenooga
|
San Juan
|
|
Chautauqua Mine
|
Lake
|
|
Cheesman Dam
|
Jefferson
|
|
Chemical Products Company
|
Denver
|
|
Chemung Belmont Mine
|
Gilpin
|
|
Cherokee
|
Gilpin
|
|
Cherokee Mine
|
Gilpin
|
|
Chesapeake
|
Mesa
|
|
Chevron Bulk Sample
|
Garfield
|
|
Cheyenne Tunnel
|
Teller
|
|
Chicago Dump
|
Lake
|
|
Chicago Mine
|
Clear Creek
|
|
Chicago Mine
|
Gunnison
|
|
Chicopee Investment Mining & Prospecting Company
|
Park
|
|
Chief Mine
|
Teller
|
|
Chief Mountain Mining Company
|
San Miguel
|
|
Chief Mountain Mining Company
|
Summit
|
|
Chief Ouray Mine
|
Ouray
|
|
Chief Shaft
|
Teller
|
|
Chief Tunnel Group
|
Summit
|
|
Chieftain Mine
|
Chaffee
|
|
Child Park Lode
|
Hinsdale
|
|
Chiles Drilling
|
Montrose
|
|
Chili # 2, 5
|
San Miguel
|
|
Chimney Rock Coal
|
Archuleta
|
|
Chince Plata
|
San Miguel
|
|
Chince Plata
|
Summit
|
|
Chipeta and Ora
|
Ouray
|
|
Chipeta Mine
|
Ouray
|
|
Chipmonk
|
Montrose
|
|
Chippewa Mine
|
Lake
|
|
Chist Mine
|
Larimer
|
|
Chloride
|
Gunnison
|
|
Chris Placer
|
Gilpin
|
|
Chrysolite Mine
|
Lake
|
|
Cimarron Mine
|
San Miguel
|
|
Cimmarron
|
Hinsdale
|
|
Cinco Minas
|
Montrose
|
|
Cissey Lee
|
Las Animas
|
|
City of Colorado Springs 24-Inch High Pressure Pipe Line
|
El Paso
|
|
City of Colorado Springs Pipeline
|
El Paso
|
|
City of Colorado Springs Water Tunnel
|
San Miguel
|
|
City of Colorado Springs Water Tunnel
|
Summit
|
|
City of Denver
|
Jefferson
|
|
City of Denver Water Tunnel - Winter Park
|
Grand
|
|
C-JD-21
|
Montrose
|
|
C-JD-22
|
Montrose
|
|
C-JD-22A
|
Montrose
|
|
C-JD-5
|
Montrose
|
|
C-JD-7
|
Montrose
|
|
C-JD-9
|
Montrose
|
|
Clair Tunnel
|
Clear Creek
|
|
Clara
|
Clear Creek
|
|
Clara
|
San Miguel
|
|
Clara
|
Summit
|
|
Clara L Mine
|
Gunnison
|
|
Clara Mine
|
Boulder
|
|
Clarabell
|
Custer
|
|
Clare Maire Mine
|
Gilpin
|
|
Clark Shaft
|
Teller
|
|
Clay County Mine
|
Gilpin
|
|
Clear Creek & Gilpin Tunnel
|
Clear Creek
|
|
Clear Creek Mining & Power Company
|
Jefferson
|
|
Clear Creek Placer
|
Gilpin
|
|
Clear Creek Secondary School
|
Clear Creek
|
|
Clear Grit Mine
|
Lake
|
|
Clear Lake Tunnel
|
San Juan
|
|
Clemon, W. B.
|
Boulder
|
|
Clemons
|
Gilpin
|
|
Cleopatra
|
Gunnison
|
|
Cleveland
|
Hinsdale
|
|
Cleveland & Central City Mining Company
|
Gilpin
|
|
Cleveland Deep Tunnel Mining Company
|
Gilpin
|
|
Cleveland Mine
|
Gilpin
|
|
Cleveland Tunnel
|
Lake
|
|
Cliff
|
Gilpin
|
|
Cliff Dweller
|
Mesa
|
|
Cliff Dweller
|
Montrose
|
|
Cliff Dweller
|
San Miguel
|
|
Cliff Mine
|
Saguache
|
|
Cliff Willow
|
Montrose
|
|
Cliffdweller Mine
|
Montrose
|
|
Clifford
|
Clear Creek
|
|
Clifton Exploration
|
Gilpin
|
|
Climax Mine
|
San Miguel
|
|
Climax Molybdenum
|
Lake
|
|
Climax Shaft
|
Lake
|
|
Climax Uranium Company
|
Mesa
|
|
Clinkenbeard
|
Gilpin
|
|
Clinton
|
Clear Creek
|
|
Clinton Mine
|
Gunnison
|
|
Clinton Mining Milling & Tunnel Company
|
Clear Creek
|
|
Clipper Mine
|
Boulder
|
|
Clover Leaf Gold Mining Company
|
Teller
|
|
Cloverdale Mine
|
Custer
|
|
Club Sandwich
|
Montrose
|
|
Clyde & Gale
|
Boulder
|
|
Clyde Mine
|
Boulder
|
|
Clyde Mine
|
Teller
|
|
Coal Basin
|
Pitkin
|
|
Coal Canyon Strip
|
Mesa
|
|
Coal Creek Canon
|
Fremont
|
|
Coal Creek No. 1
|
Rio Blanco
|
|
Coal Gulch
|
La Plata
|
|
Coal Springs Mine, Gold Hill
|
Boulder
|
|
Coal Springs Mine, Nederland
|
Boulder
|
|
Coalby No. 2
|
Delta
|
|
Cobb Mine
|
Boulder
|
|
Cocho
|
Mesa
|
|
Cocomongo Mine
|
Saguache
|
|
Coefield & Chandler
|
San Miguel
|
|
Coeur D'Alene Mine
|
Gilpin
|
|
Colburn Ajax Gold Mining
|
Teller
|
|
Colby Placer
|
Boulder
|
|
Cold Chisel
|
Teller
|
|
Cold Springs
|
Custer
|
|
Colewood Mine
|
Mineral
|
|
Collins Group
|
Clear Creek
|
|
Collom
|
Clear Creek
|
|
Colman Grade Section
|
Pitkin
|
|
Colomin Mine
|
Clear Creek
|
|
Colomo Mining Company
|
Gilpin
|
|
Colonel Sellers
|
Summit
|
|
Colonel Sellers Mine
|
Lake
|
|
Colony Mine
|
Garfield
|
|
Coloradium Mine
|
Montrose
|
|
Colorado
|
San Miguel
|
|
Colorado - Cooperative Mining & Milling Company
|
La Plata
|
|
Colorado - New York Gold & Copper Mining Company
|
Boulder
|
|
Colorado #2
|
Boulder
|
|
Colorado #2
|
Boulder
|
|
Colorado Alunite Company
|
Dolores
|
|
Colorado Carbon
|
Garfield
|
|
Colorado Carnotite Company
|
Montrose
|
|
Colorado Carr Mine
|
Gilpin
|
|
Colorado Central Mines
|
Clear Creek
|
|
Colorado City Mine
|
Teller
|
|
Colorado Copper Minning & Milling Company
|
Gunnison
|
|
Colorado Duluth
|
Pitkin
|
|
Colorado Extension Mining
|
Clear Creek
|
|
Colorado Flourspar Corporation
|
Jackson
|
|
Colorado Fluorspar
|
Chaffee
|
|
Colorado Gilpin Gold & Radium Company
|
Gilpin
|
|
Colorado Gold King
|
San Juan
|
|
Colorado Gold King Mining & Exploration Company
|
Gilpin
|
|
Colorado King Mine
|
Teller
|
|
Colorado Klondike Mine
|
Lake
|
|
Colorado Metals Company
|
San Juan
|
|
Colorado Metals Seperation Company
|
Lake
|
|
Colorado Mine
|
Boulder
|
|
Colorado Mine
|
Larimer
|
|
Colorado Minerals Seperation Company
|
Summit
|
|
Colorado Mines Consolidated Company
|
El Paso
|
|
Colorado Mining & Development Company
|
Clear Creek
|
|
Colorado Miracle Mine
|
Boulder
|
|
Colorado Oil Shale Company
|
Mesa
|
|
Colorado River Improvement Program
|
Montrose
|
|
Colorado School of Mines - Geophysical Observatory
|
Jefferson
|
|
Colorado Smelting and Mining Company
|
Gunnison
|
|
Colorado Sunrise
|
San Juan
|
|
Colorado Tungsten Mines Company
|
Boulder
|
|
Colorado United Mines Company
|
Boulder
|
|
Colorado Vanadium Corporation
|
San Miguel
|
|
Colorado Water Quality Improvement Program
|
Montrose
|
|
Colorado White Marble
|
Gunnison
|
|
Colowyo Strip
|
Moffat
|
|
Coltoc Group
|
San Miguel
|
|
Columbia
|
Boulder
|
|
Columbia
|
Clear Creek
|
|
Columbia
|
Dolores
|
|
Columbia
|
Park
|
|
Columbia
|
Saguache
|
|
Columbia Leasing Company
|
San Miguel
|
|
Columbia Mine
|
San Juan
|
|
Columbia Oil Shale
|
Garfield
|
|
Columbia Summit
|
Clear Creek
|
|
Columbia Tunnel
|
Gilpin
|
|
Columbia Tunnel
|
Montrose
|
|
Columbian Mine
|
Clear Creek
|
|
Columbine
|
Boulder
|
|
Columbine
|
Gunnison
|
|
Columbine
|
Rio Blanco
|
|
Columbine
|
San Juan
|
|
Columbine Consolidated Mines & Milling Company
|
Chaffee
|
|
Columbine Gold Mining Company
|
San Miguel
|
|
Columbine Group
|
Lake
|
|
Columbine Group
|
San Miguel
|
|
Columbine Mine
|
Jefferson
|
|
Columbine Tunnel
|
Clear Creek
|
|
Columbus
|
Chaffee
|
|
Columbus
|
Montrose
|
|
Columbus
|
San Juan
|
|
Columbus Mines
|
Boulder
|
|
Columbus Mines Company
|
La Plata
|
|
Comanche
|
Teller
|
|
Combination Mine
|
Clear Creek
|
|
Comet Mine
|
Gilpin
|
|
Comet Mining Company
|
Clear Creek
|
|
Coming Wonder
|
San Juan
|
|
Commander Mine
|
Saguache
|
|
Commercial Mine
|
San Miguel
|
|
Commnwealth Tunnel
|
Clear Creek
|
|
Commodore
|
Montrose
|
|
Commonwealth Mine
|
Teller
|
|
Commonwealth Mining & Investment Company
|
Boulder
|
|
Commonwealth Oil Shale & Refining Company
|
Garfield
|
|
Complex
|
Gunnison
|
|
Comstock
|
Boulder
|
|
Comstock
|
Clear Creek
|
|
Comstock
|
Clear Creek
|
|
Comstock Hill Tunnel
|
Teller
|
|
Comstock Mine
|
Boulder
|
|
Comstock Mine
|
Custer
|
|
Comstock Mine
|
Gilpin
|
|
Comstock Tunnel
|
La Plata
|
|
Concord Chief Mine
|
Park
|
|
Concord Mine
|
Boulder
|
|
Concrete Mine
|
Gilpin
|
|
Condor
|
Chaffee
|
|
Conforth Exploration
|
Montrose
|
|
Congdon & Carey
|
Custer
|
|
Conger Mine
|
Boulder
|
|
Congress Gold & Copper Company
|
San Juan
|
|
Congress Mine
|
San Juan
|
|
Congress Mine
|
Summit
|
|
Congress Tunnel
|
San Miguel
|
|
Congress Tunnel
|
Summit
|
|
Conners Drilling Incorporated
|
Montrose
|
|
Connors
|
Summit
|
|
Conqueror Mine
|
Clear Creek
|
|
Consolation Mine
|
Boulder
|
|
Consolidated
|
