Mine

County

Notes

R. A. Group

Gunnison

Miscellaneous R

R. A. L. # 1

Montrose

R. A. M. Mine

Gilpin

Miscellaneous "R"

R. S. Morton & W. G. Peters

Summit

Miscellaneous "R"

Rabbit Ear Mine

Routt

Rabbit Ear Peak

Jackson

Rabbit Foot #1 and #2

Montrose

Miscellaneous "R"

Rad Hill No. 21, 22

Montrose

Radical Mine

Summit

Miscellaneous "R"

Radium Circle

Montrose

Radium Company of Colorado

Denver

Radium Company of Colorado

Mesa

Radium Company of Colorado

Montrose

Radium Company of Denver

San Miguel

Miscellaneous "R"

Radium Copper Mining Company

Grand

Miscellaneous "R"

Radium Group

San Miguel

Radium Hills

Montrose

Radium King

Montrose

Radium Mine

Montrose

Miscellaneous "R"

Radium Ore Sampling Works

Montrose

Miscellaneous "R"

Radium Ores Company

Montrose

Radium Queen

Montrose

Rafter Lease

Boulder

Railroad Boy

Boulder

Rainbow

Mesa

Rainbow

Fremont

Rainbow

Park

Rainbow Mine

Boulder

Miscellaneous "R"

Rainbow Mine

Clear Creek

Rainy Day

Mesa

Rainy Day

San Miguel

Rajah

Montrose

Rajah

Montrose

Miscellaneous "R"

Rajah No. 28 - 30

Mesa

Rake Off Mine

Boulder

Ramah

El Paso

Miscellaneous "R"

Rambler

Montrose

Rambler

San Miguel

Rambler & Cliff Dweller

San Miguel

Miscellaneous "R"

Rambler Mine

Boulder

Ramona Mine

Teller

Ramona Mines Company

Lake

Miscellaneous "R"

Rampart Range Tunnel

El Paso

Rams Horn Tunnel

Larimer

Miscellaneous "R"

Ranchman Silver Mines Company

San Juan

Miscellaneous "R"

Randall

Park

Miscellaneous "R"

Ransom

San Juan

Ransom

San Juan

Miscellaneous "R"

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

Miscellaneous "R"

Rattling Jack

Lake

Raven

Montrose

Raven - Anaconda Tunnel

Teller

Miscellaneous "R"

Raven Beacon Mine

Teller

Raven Beacon Mines Corporation

Denver

Miscellaneous "R"

Raven No. 3

Mesa

Rawley Mine

Saguache

Ray Ida Mine

Grand

Miscellaneous "R"

Ray Jay Gold Mining & Milling Company

Boulder

Miscellaneous "R"

Rayida Mines Incorporated

Custer

Raymond

Clear Creek

Miscellaneous "R"

Raymond

Clear Creek

Raymond Mine

Gunnison

Razoo Mine

Saguache

Miscellaneous "R"

Ready Cash Group

Lake

Miscellaneous "R"

Ready Cash Mine

Boulder

Miscellaneous "R"

Ready Cash Mine

Gilpin

Miscellaneous "R"

Ready Cash Mine

Grand

Ready Money Mine

Boulder

Miscellaneous "R"

Rebeckah Mining Company

Gilpin

Miscellaneous "R"

Recapture

La Plata

Miscellaneous "R"

Recluse Mine

Boulder

Recovery Tunnel

Mineral

Miscellaneous "N"

Recruit

Summit

Red - Metal Mining Company

Park

Miscellaneous "R"

Red Ant

San Miguel

Red Arrow

Montrose

Miscellaneous "R"

Red Arrow Mine

Montezuma

Red Bird Mine

Gunnison

Red Canyon No. 1

Delta

Red Cliffe

Fremont

Red Cloud Mine

Gilpin

Miscellaneous "R"

Red Cloud Mine

Gunnison

Miscellaneous R

Red Cross

Park

Red Cross Mine

Park

Miscellaneous "R"

Red Cup

Eagle

Miscellanoeus "R"

Red Elephant Mine

Clear Creek

Red Flash

Montrose

Miscellaneous "R"

Red Fox

Montrose

Red Gold Mine

Boulder

Miscellaneous "R"

Red Group

Ouray

Miscellaneous "R"

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

Miscellaneous "R"

Red Rock Group

San Miguel

Red Rose Group

Gunnison

Miscellaneous R

Red Signe Mine

Boulder

Red Sox

Montrose

Red Spruce

Boulder

Red Umbrella Mine

Teller

Miscellaneous "R"

Redbed #2

Montrose

Miscellaneous "R"

Redbird

Montrose

Redick, O. C. Mining

Gilpin

RediMIx Plant

Mesa

Miscellaneous "M"

Redrock # 1 & #3

Montrose

Redskin

Park

Miscellaneous "R"

Redstone & Blackstone

Clear Creek

Redwing

Moffat

Redwing

San Miguel

Miscellaneous "R"

Reed Claim No. 1

Saguache

Miscellaneous "R"

Reed Doyle Holdings

Garfield

Miscellaneous D

Reform Mine

Gilpin

Refugee Mine

Clear Creek

Regina Mine

Clear Creek

Reindeer Mining Company

Lake

Miscellaneous "R"

Remmington Tunnel

Clear Creek

Miscellaneous "R"

Renegade

Montrose

Reno Mining & Milling Company

Teller

Miscellaneous "R"

Reppy Gold Mining Company

Boulder

Miscellaneous "R"

Republic Gold Mines Company

Teller

Miscellaneous "R"

Republican

Montrose

Requa - Savage

Teller

Miscellaneous "R"

Reservation

San Miguel

Miscellaneous "R"

Resolute Mine

Dolores

Resurrection Mine

Lake

Resurrection Mine

Mineral

Resurrection Mines Company

Gilpin

Miscellaneous "R"

Retribution

San Miguel

Miscellaneous "R"

Revelle

Custer

Revenge

Boulder

Revenue Cutter Tunnel

Lake

Revenue Mine

Clear Creek

Miscellaneous "R"

Revenue Mine

Dolores

Revenue Mine

Ouray

Revenue Mine

Summit

Miscellaneous "R"

Revenue Mining & Milling Company

Gunnison

Miscellaneous R

Revis

Larimer

Miscellaneous "R"

Revned Mining & Developmeny Company

Gilpin

Miscellaneous "R"

Rex

Boulder

Rex

Montrose

Miscellaneous "R"

Rex #38

Montrose

Rex Carbon Group

Fremont

Rex Mine

Gilpin

Rexall Shaft

Lake

Reynolds - Morse Corporation

Gunnison

Miscellaneous R

Reynolds Mine

Clear Creek

Reynolds Tunnel

Rio Grande

Rhyolite Chief & National Debt

Teller

Richards & Richards Drilling Company

Montrose

Miscellaneous "R"

Richardson

Gilpin

Miscellaneous "R"

Richardson Drilling

Mesa

Richardson Drilling

Montrose

Miscellaneous "R"

Richie Shaft

Lake

Miscellaneous "R"

Richmond

Boulder

Rico Argentine Mining

Dolores

Rico Boy

Dolores

Rico Boy Tunnel

Dolores

Miscellaneous "A"

Rico Consolidated Mining

Dolores

Rico Mine

Saguache

Rider Mine

Gilpin

Ridge

San Juan

Ridgeway Dam Project

Ouray

Miscellaneous "R"

Ridgeway Mine

San Juan

Rienam #2

Rio Blanco

Rifle & Puleson

Garfield

Miscellaneous R

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

Miscellaneous "R"

Rimrock

Rio Blanco

Miscellaneous "R"

Rio Grande Mine

Clear Creek

Rio Grande Mining Company

Mineral

Rio Oro

Saguache

Rio Tinto

Boulder

Miscellaneous "R"

Rip Van Dam

Boulder

Risorgimento Mine

Hinsdale

Miscellaneous "R"

Rita Beryl, Feldspar Beryl & Clipper Group

Larimer

Miscellaneous "R"

Rito Seco

Costilla

Miscellaneous "R"

Rittenhouse

Teller

River View

San Miguel

River View Leasing

Mineral

Riverside Independence

San Juan

Riverview Mine

Conejos

Roadside

Mesa

Roanoake Mine

Teller

Miscellaneous "R"

Roanoke Company

Clear Creek

Robb Pit

Moffat

Miscellaneous "R"

Robert Bonner Mine

San Juan

Miscellaneous "R"

Robert E. Lee

Lake

Robert Emmet Mine

Lake

Robert Emmett

Gilpin

Robert Fulton Mine

Gilpin

Miscellaneous "R"

Roberta Jean

Montezuma

Miscellaneous "R"

Roberta Lee

San Miguel

Miscellaneous "R"

Roberta Tunnel

Park

Roberta Tunnel

Summit

Robin

Boulder

Miscellaneous "R"

Robly Tunnel

Summit

Miscellaneous "R"

Roboff Group

Lake

Miscellaneous "R"

Roc Creek

Montrose

Miscellaneous "R"

Roc Creek Uranium & Mining Company

Montrose

Miscellaneous "R"

Rochester Mine

Gilpin

Rock Creek Mine

Montrose

Miscellaneous "R"

Rock Haven

Montrose

Rock of Ages

San Miguel

Miscellaneous "R"

Rockefeller Group

Lake

Rockfield Mine

Larimer

Rockford

Gilpin

Miscellaneous "R"

Rocky Mountain Gold Mining Company

San Juan

Miscellaneous "R"

Rocky Mountain Mammoth

Boulder

Rocky Mountain Mine

Boulder

Rocky Mt. Minerals

Fremont

Rodgers Mining Company

Park

Miscellaneous "R"

Rodney #1

Hinsdale

Miscellaneous "R"

Rodney Portal

Hinsdale

Miscellaneous "R"

Rogers Lead Company

Chaffee

Rogers Mine

Montrose

Miscellaneous "R"

Rogers Tract

Boulder

Rogers Tunnel

Teller

Miscellaneous "R"

Rokatinda

Lake

Rolling Mountain

San Juan

Rome Gardner Mining Company

Gilpin

Miscellaneous "R"

Romines Drilling

San Miguel

Miscellaneous "R"

Ronnie No. 1 & 2

Mesa

Roosevelt

Montrose

Roosevelt Mine

Boulder

Roosevelt Mine

Gilpin

Miscellaneous "R"

Roosevelt Tunnel

Gunnison

Root Cellar

Boulder

Miscellaneous "R"

Roote Ranch

Clear Creek

Miscellaneous "R"

Roscoe Mine

Gilpin

Miscellaneous "R"

Rose Hardy Mine

Teller

Miscellaneous "R"

Rose Maud Gold Mining Company

Teller

Miscellaneous "R"

Rose Mine

Summit

Rose Nicol Mine

Teller

Roseberry Mine

Boulder

Rosebud

Mesa

Rosebud

Montrose

Miscellaneous "R"

Rosebud Gold Mines Company

San Miguel

Miscellaneous "R"

Rosebud Mining & Milling Company

Teller

Miscellaneous "R"

Rosemont Tunnel

Teller

Miscellaneous "R"

Rosita Lease on Stephen No. 2

Custer

Miscellaneous "R"

Roslyn

Boulder

Miscellaneous "R"

Rosnite

La Plata

Miscellaneous "R"

Ross & Smith

Moffat

Miscellaneous "R"

Ross Basin Drilling Operation

San Juan

Miscellaneous "R"

Rosse Mine

Lake

Rosse Tunnel

Lake

Miscellaneous "S"

Rothchilds Tunnel

Summit

Miscellaneous "R"

Round Mountain

Custer

Miscellaneous "R"

Routt County Construction Company

Routt

Rouville Mine

Ouray

Roy Lee

San Miguel

Roy Quinn Drilling Company

Montrose

Miscellaneous "R"

Roy Quinn Drilling Company

San Miguel

Miscellaneous "R"

Royal

Clear Creek

Miscellaneous "R"

Royal Ann Mine

Clear Creek

Miscellaneous "R"

Royal Flush Mine

Routt

Royal Gem Mining

Boulder

Miscellaneous "R"

Royal George Mine

Summit

Miscellaneous "R"

Royal Mine

San Miguel

Rozella Mine

Hinsdale

Miscellaneous "R"

Rubedale

Montrose

Rubie Lease Company

Mesa

Rubie Mine

Teller

Ruby

San Juan

Ruby

San Juan

Miscellaneous "R"

Ruby Basin

San Juan

Ruby Consolidated Silver Mines Company

Gunnison

Miscellaneous R

Ruby Mine

Boulder

Ruby Mining & Leasing Company

Teller

Miscellaneous "R"

Ruby Trust Mine

Ouray

Rudot #3

Mesa

Miscellaneous "R"

Rugby No. 6

Huerfano

Rugh Mine

Larimer

Miscellaneous "R"

Running Lode

Gilpin

Rush Mining & Milling Company

El Paso

Miscellaneous "R"

Russel Gulch Pit No. 1

Gilpin

Miscellaneous "R"

Russell Mine

Gilpin

Russian Mine

Park

Rusty Dime

Boulder

Miscellaneous "R"

Rusty Shovel - Black Squirrel

Clear Creek

Ruth

Mesa

Miscellaneous "R"

Ruth Ellen

Montrose

Miscellaneous "R"

Rutomipa

Ouray

Rye #8

Montrose