|
Mine
|
County
|
|
R. A. Group
|
Gunnison
|
|
R. A. L. # 1
|
Montrose
|
|
R. A. M. Mine
|
Gilpin
|
|
R. S. Morton & W. G. Peters
|
Summit
|
|
Rabbit Ear Mine
|
Routt
|
|
Rabbit Ear Peak
|
Jackson
|
|
Rabbit Foot #1 and #2
|
Montrose
|
|
Rad Hill No. 21, 22
|
Montrose
|
|
Radical Mine
|
Summit
|
|
Radium Circle
|
Montrose
|
|
Radium Company of Colorado
|
Denver
|
|
Radium Company of Colorado
|
Mesa
|
|
Radium Company of Colorado
|
Montrose
|
|
Radium Company of Denver
|
San Miguel
|
|
Radium Copper Mining Company
|
Grand
|
|
Radium Group
|
San Miguel
|
|
Radium Hills
|
Montrose
|
|
Radium King
|
Montrose
|
|
Radium Mine
|
Montrose
|
|
Radium Ore Sampling Works
|
Montrose
|
|
Radium Ores Company
|
Montrose
|
|
Radium Queen
|
Montrose
|
|
Rafter Lease
|
Boulder
|
|
Railroad Boy
|
Boulder
|
|
Rainbow
|
Mesa
|
|
Rainbow
|
Fremont
|
|
Rainbow
|
Park
|
|
Rainbow Mine
|
Boulder
|
|
Rainbow Mine
|
Clear Creek
|
|
Rainy Day
|
Mesa
|
|
Rainy Day
|
San Miguel
|
|
Rajah
|
Montrose
|
|
Rajah
|
Montrose
|
|
Rajah No. 28 - 30
|
Mesa
|
|
Rake Off Mine
|
Boulder
|
|
Ramah
|
El Paso
|
|
Rambler
|
Montrose
|
|
Rambler
|
San Miguel
|
|
Rambler & Cliff Dweller
|
San Miguel
|
|
Rambler Mine
|
Boulder
|
|
Ramona Mine
|
Teller
|
|
Ramona Mines Company
|
Lake
|
|
Rampart Range Tunnel
|
El Paso
|
|
Rams Horn Tunnel
|
Larimer
|
|
Ranchman Silver Mines Company
|
San Juan
|
|
Randall
|
Park
|
|
Ransom
|
San Juan
|
|
Ransom
|
San Juan
|
|
Rara Avis Mine
|
Gilpin
|
|
Rare Metals Corporation
|
Montrose
|
|
Rare Metals of Colorado
|
San Miguel
|
|
Rare Metals Ore Company
|
Gilpin
|
|
Rarus Warrior Mines
|
Chaffee
|
|
Rattlesnake
|
Montrose
|
|
Rattlesnake - Old Lions Creek
|
Montrose
|
|
Rattlesnake Claims
|
San Miguel
|
|
Rattling Jack
|
Lake
|
|
Raven
|
Montrose
|
|
Raven - Anaconda Tunnel
|
Teller
|
|
Raven Beacon Mine
|
Teller
|
|
Raven Beacon Mines Corporation
|
Denver
|
|
Raven No. 3
|
Mesa
|
|
Rawley Mine
|
Saguache
|
|
Ray Ida Mine
|
Grand
|
|
Ray Jay Gold Mining & Milling Company
|
Boulder
|
|
Rayida Mines Incorporated
|
Custer
|
|
Raymond
|
Clear Creek
|
|
Raymond
|
Clear Creek
|
|
Raymond Mine
|
Gunnison
|
|
Razoo Mine
|
Saguache
|
|
Ready Cash Group
|
Lake
|
|
Ready Cash Mine
|
Boulder
|
|
Ready Cash Mine
|
Gilpin
|
|
Ready Cash Mine
|
Grand
|
|
Ready Money Mine
|
Boulder
|
|
Rebeckah Mining Company
|
Gilpin
|
|
Recapture
|
La Plata
|
|
Recluse Mine
|
Boulder
|
|
Recovery Tunnel
|
Mineral
|
|
Recruit
|
Summit
|
|
Red - Metal Mining Company
|
Park
|
|
Red Ant
|
San Miguel
|
|
Red Arrow
|
Montrose
|
|
Red Arrow Mine
|
Montezuma
|
|
Red Bird Mine
|
Gunnison
|
|
Red Canyon No. 1
|
Delta
|
|
Red Cliffe
|
Fremont
|
|
Red Cloud Mine
|
Gilpin
|
|
Red Cloud Mine
|
Gunnison
|
|
Red Cross
|
Park
|
|
Red Cross Mine
|
Park
|
|
Red Cup
|
Eagle
|
|
Red Elephant Mine
|
Clear Creek
|
|
Red Flash
|
Montrose
|
|
Red Fox
|
Montrose
|
|
Red Gold Mine
|
Boulder
|
|
Red Group
|
Ouray
|
|
Red Hill
|
Larimer
|
|
Red Horse
|
San Miguel
|
|
Red Jacket Mine
|
Clear Creek
|
|
Red Lion
|
Park
|
|
Red Lion Mine
|
Clear Creek
|
|
Red Mountain Properties
|
San Juan
|
|
Red Rock Group
|
San Miguel
|
|
Red Rose Group
|
Gunnison
|
|
Red Signe Mine
|
Boulder
|
|
Red Sox
|
Montrose
|
|
Red Spruce
|
Boulder
|
|
Red Umbrella Mine
|
Teller
|
|
Redbed #2
|
Montrose
|
|
Redbird
|
Montrose
|
|
Redick, O. C. Mining
|
Gilpin
|
|
RediMIx Plant
|
Mesa
|
|
Redrock # 1 & #3
|
Montrose
|
|
Redskin
|
Park
|
|
Redstone & Blackstone
|
Clear Creek
|
|
Redwing
|
Moffat
|
|
Redwing
|
San Miguel
|
|
Reed Claim No. 1
|
Saguache
|
|
Reed Doyle Holdings
|
Garfield
|
|
Reform Mine
|
Gilpin
|
|
Refugee Mine
|
Clear Creek
|
|
Regina Mine
|
Clear Creek
|
|
Reindeer Mining Company
|
Lake
|
|
Remmington Tunnel
|
Clear Creek
|
|
Renegade
|
Montrose
|
|
Reno Mining & Milling Company
|
Teller
|
|
Reppy Gold Mining Company
|
Boulder
|
|
Republic Gold Mines Company
|
Teller
|
|
Republican
|
Montrose
|
|
Requa - Savage
|
Teller
|
|
Reservation
|
San Miguel
|
|
Resolute Mine
|
Dolores
|
|
Resurrection Mine
|
Lake
|
|
Resurrection Mine
|
Mineral
|
|
Resurrection Mines Company
|
Gilpin
|
|
Retribution
|
San Miguel
|
|
Revelle
|
Custer
|
|
Revenge
|
Boulder
|
|
Revenue Cutter Tunnel
|
Lake
|
|
Revenue Mine
|
Clear Creek
|
|
Revenue Mine
|
Dolores
|
|
Revenue Mine
|
Ouray
|
|
Revenue Mine
|
Summit
|
|
Revenue Mining & Milling Company
|
Gunnison
|
|
Revis
|
Larimer
|
|
Revned Mining & Developmeny Company
|
Gilpin
|
|
Rex
|
Boulder
|
|
Rex
|
Montrose
|
|
Rex #38
|
Montrose
|
|
Rex Carbon Group
|
Fremont
|
|
Rex Mine
|
Gilpin
|
|
Rexall Shaft
|
Lake
|
|
Reynolds - Morse Corporation
|
Gunnison
|
|
Reynolds Mine
|
Clear Creek
|
|
Reynolds Tunnel
|
Rio Grande
|
|
Rhyolite Chief & National Debt
|
Teller
|
|
Richards & Richards Drilling Company
|
Montrose
|
|
Richardson
|
Gilpin
|
|
Richardson Drilling
|
Mesa
|
|
Richardson Drilling
|
Montrose
|
|
Richie Shaft
|
Lake
|
|
Richmond
|
Boulder
|
|
Rico Argentine Mining
|
Dolores
|
|
Rico Boy
|
Dolores
|
|
Rico Boy Tunnel
|
Dolores
|
|
Rico Consolidated Mining
|
Dolores
|
|
Rico Mine
|
Saguache
|
|
Rider Mine
|
Gilpin
|
|
Ridge
|
San Juan
|
|
Ridgeway Dam Project
|
Ouray
|
|
Ridgeway Mine
|
San Juan
|
|
Rienam #2
|
Rio Blanco
|
|
Rifle & Puleson
|
Garfield
|
|
Rifle Creek Dam
|
Garfield
|
|
Rifle Creek Mine
|
Garfield
|
|
Rifle Mill
|
Garfield
|
|
Rigi Mine
|
Teller
|
|
Rigil
|
Montrose
|
|
Rilla Mine
|
Summit
|
|
Rim Rock
|
Montrose
|
|
Rim Rock Blues
|
Montrose
|
|
Rim Rock Blues Mine
|
San Miguel
|
|
Rimrock
|
Rio Blanco
|
|
Rio Grande Mine
|
Clear Creek
|
|
Rio Grande Mining Company
|
Mineral
|
|
Rio Oro
|
Saguache
|
|
Rio Tinto
|
Boulder
|
|
Rip Van Dam
|
Boulder
|
|
Risorgimento Mine
|
Hinsdale
|
|
Rita Beryl, Feldspar Beryl & Clipper Group
|
Larimer
|
|
Rito Seco
|
Costilla
|
|
Rittenhouse
|
Teller
|
|
River View
|
San Miguel
|
|
River View Leasing
|
Mineral
|
|
Riverside Independence
|
San Juan
|
|
Riverview Mine
|
Conejos
|
|
Roadside
|
Mesa
|
|
Roanoake Mine
|
Teller
|
|
Roanoke Company
|
Clear Creek
|
|
Robb Pit
|
Moffat
|
|
Robert Bonner Mine
|
San Juan
|
|
Robert E. Lee
|
Lake
|
|
Robert Emmet Mine
|
Lake
|
|
Robert Emmett
|
Gilpin
|
|
Robert Fulton Mine
|
Gilpin
|
|
Roberta Jean
|
Montezuma
|
|
Roberta Lee
|
San Miguel
|
|
Roberta Tunnel
|
Park
|
|
Roberta Tunnel
|
Summit
|
|
Robin
|
Boulder
|
|
Robly Tunnel
|
Summit
|
|
Roboff Group
|
Lake
|
|
Roc Creek
|
Montrose
|
|
Roc Creek Uranium & Mining Company
|
Montrose
|
|
Rochester Mine
|
Gilpin
|
|
Rock Creek Mine
|
Montrose
|
|
Rock Haven
|
Montrose
|
|
Rock of Ages
|
San Miguel
|
|
Rockefeller Group
|
Lake
|
|
Rockfield Mine
|
Larimer
|
|
Rockford
|
Gilpin
|
|
Rocky Mountain Gold Mining Company
|
San Juan
|
|
Rocky Mountain Mammoth
|
Boulder
|
|
Rocky Mountain Mine
|
Boulder
|
|
Rocky Mt. Minerals
|
Fremont
|
|
Rodgers Mining Company
|
Park
|
|
Rodney #1
|
Hinsdale
|
|
Rodney Portal
|
Hinsdale
|
|
Rogers Lead Company
|
Chaffee
|
|
Rogers Mine
|
Montrose
|
|
Rogers Tract
|
Boulder
|
|
Rogers Tunnel
|
Teller
|
|
Rokatinda
|
Lake
|
|
Rolling Mountain
|
San Juan
|
|
Rome Gardner Mining Company
|
Gilpin
|
|
Romines Drilling
|
San Miguel
|
|
Ronnie No. 1 & 2
|
Mesa
|
|
Roosevelt
|
Montrose
|
|
Roosevelt Mine
|
Boulder
|
|
Roosevelt Mine
|
Gilpin
|
|
Roosevelt Tunnel
|
Gunnison
|
|
Root Cellar
|
Boulder
|
|
Roote Ranch
|
Clear Creek
|
|
Roscoe Mine
|
Gilpin
|
|
Rose Hardy Mine
|
Teller
|
|
Rose Maud Gold Mining Company
|
Teller
|
|
Rose Mine
|
Summit
|
|
Rose Nicol Mine
|
Teller
|
|
Roseberry Mine
|
Boulder
|
|
Rosebud
|
Mesa
|
|
Rosebud
|
Montrose
|
|
Rosebud Gold Mines Company
|
San Miguel
|
|
Rosebud Mining & Milling Company
|
Teller
|
|
Rosemont Tunnel
|
Teller
|
|
Rosita Lease on Stephen No. 2
|
Custer
|
|
Roslyn
|
Boulder
|
|
Rosnite
|
La Plata
|
|
Ross & Smith
|
Moffat
|
|
Ross Basin Drilling Operation
|
San Juan
|
|
Rosse Mine
|
Lake
|
|
Rosse Tunnel
|
Lake
|
|
Rothchilds Tunnel
|
Summit
|
|
Round Mountain
|
Custer
|
|
Routt County Construction Company
|
Routt
|
|
Rouville Mine
|
Ouray
|
|
Roy Lee
|
San Miguel
|
|
Roy Quinn Drilling Company
|
Montrose
|
|
Roy Quinn Drilling Company
|
San Miguel
|
|
Royal
|
Clear Creek
|
|
Royal Ann Mine
|
Clear Creek
|
|
Royal Flush Mine
|
Routt
|
|
Royal Gem Mining
|
Boulder
|
|
Royal George Mine
|
Summit
|
|
Royal Mine
|
San Miguel
|
|
Rozella Mine
|
Hinsdale
|
|
Rubedale
|
Montrose
|
|
Rubie Lease Company
|
Mesa
|
|
Rubie Mine
|
Teller
|
|
Ruby
|
San Juan
|
|
Ruby
|
San Juan
|
|
Ruby Basin
|
San Juan
|
|
Ruby Consolidated Silver Mines Company
|
Gunnison
|
|
Ruby Mine
|
Boulder
|
|
Ruby Mining & Leasing Company
|
Teller
|
|
Ruby Trust Mine
|
Ouray
|
|
Rudot #3
|
Mesa
|
|
Rugby No. 6
|
Huerfano
|
|
Rugh Mine
|
Larimer
|
|
Running Lode
|
Gilpin
|
|
Rush Mining & Milling Company
|
El Paso
|
|
Russel Gulch Pit No. 1
|
Gilpin
|
|
Russell Mine
|
Gilpin
|
|
Russian Mine
|
Park
|
|
Rusty Dime
|
Boulder
|
|
Rusty Shovel - Black Squirrel
|
Clear Creek
|
|
Ruth
|
Mesa
|
|
Ruth Ellen
|
Montrose
|
|
Rutomipa
|
Ouray
|
|
Rye #8
|
Montrose
|
