Mine

County

Notes

S & M

Hinsdale

Miscellaneous "S"

S & M2

Chaffee

Miscellaneous "S"

S. B. Group

San Miguel

S. K. Adit

San Miguel

Miscellaneous "S"

S. K. Rim

San Miguel

Miscellaneous "S"

S. O. S. & Lucky Strike Group

Garfield

Miscellaneous S

Sac & Fox Mine

Boulder

Miscellaneous "S"

Saco de Oro Mine

Gilpin

Sacramento Mine

Teller

Sage #11

San Miguel

Sage #11

San Miguel

Miscellaneous "S"

Saginaw

Clear Creek

Miscellaneous "S"

Saint Anne Mine

Chaffee

Saint Charles Mines Company

Ouray

Miscellaneous "S"

Saint Louis Mine

Boulder

Saint Louis No. 2

Gilpin

Miscellaneous "S"

Salary Grabber Lease

Gunnison

Miscellaneous S

Salina Mine

Boulder

Salisbury Mine & Mill

Clear Creek

Miscellaneous "S"

Sallie Barber Mine

Summit

Saltado Dam Site

San Miguel

Miscellaneous "S"

Sam

Montrose

Sam Richards Drilling

Montrose

Miscellaneous "R"

Sambo Claims

Dolores

Miscellaneous "S"

Sammy Boy Mine

Saguache

Miscellaneous "S"

Samuel McMullin Holdings

Garfield

Miscellaneous M

San Bernardo Mine

San Miguel

San Diego Tunnel

San Juan

Miscellaneous "S"

San Domingo Mine

Boulder

Miscellaneous "S"

San Jova

Mesa

Miscellaneous "S"

San Juan

San Miguel

Miscellaneous "S"

San Juan - Chama Project

Archuleta

San Juan #1 & 3

San Miguel

San Juan Chief

Ouray

Miscellaneous "S"

San Juan Home Mining Company

San Juan

Miscellaneous "S"

San Juan Mine

Clear Creek

San Juan Mines Corporation

San Juan

Miscellaneous "S"

San Juan Queen Mine

San Juan

Miscellaneous "S"

San Louis Pigment

Saguache

Miscellaneous "S"

San Miguel

San Miguel

San Miguel #10

Montrose

Miscellaneous "S"

San Miguel Project

San Miguel

Miscellaneous "S"

San Pedro

Montrose

Miscellaneous "S"

Sanchez & Company

San Miguel

Miscellaneous "S"

Sanders Lease

Jefferson

Sandy

Montrose

Sandy Hook Mining Company

Gunnison

Miscellaneous S

Sangre De Cristo

Teller

Santa Cruz

Eagle

Miscellaneous "S"

Santa Cruz Mine

San Miguel

Santa Fe

Clear Creek

Santa LaSaria

Boulder

Miscellaneous "S"

Santa Rita

Teller

Santiago Mine

Clear Creek

Sarah Ellen

San Miguel

Sarah G

La Plata

Sarah M

San Miguel

Saratoga - Mono - Baltic Group

Ouray

Miscellaneous "S"

Saratoga Mine

Gilpin

Sarsfield Mine

Park

Satartle Mine

Clear Creek

Saucer Basin Group

Montrose

Saunders Lease

Jefferson

Miscellaneous S

Saunders Shaft

Teller

Savage Mine

San Miguel

Sawatch Tunnel

Lake

Miscellaneous "S"

Sceptre Mine

Clear Creek

Schlesinger Radium Company

Denver

Schlesinger Radium Company Incorporated

Montrose

Miscellaneous "S"

Schley Mine

Clear Creek

Miscellaneous "S"

School District T-3 R-71

Jefferson

Miscellaneous S

School Marm Claim

Montrose

School Section

Teller

School Section 36

Fremont

Miscellaneous S

Schwartzwalder

Jefferson

Scotch and Irish Girl

Ouray

Scotia Mine

Boulder

Scotia Mine

Clear Creek

Scott Tunnel

Lake

Miscellaneous "S"

Searchlight Oil & Mining Company

Gunnison

Miscellaneous S

Searchlight Oil Shale Company

Garfield

Miscellaneous S

Sears #1

San Miguel

Seaton Mine

Clear Creek

Second Million

Hinsdale

Secundus Gold Mining Company

Teller

Miscellaneous "S"

Sedalia Copper Company

Chaffee

Seemann Investment & Finance Company

Teller

Miscellaneous "S"

Sego Lily Lou

San Miguel

Selma Mine

Summit

Miscellaneous "S"

Semiprone Mine

Gilpin

Senator

San Juan

Miscellaneous "S"

Senator Hill & Ophir Syndicate

Boulder

Senator Mine

Boulder

Miscellaneous "S"

Senator Mine

Clear Creek

Senator Mine

Gilpin

Senator Tunnel

Gunnison

Miscellaneous S

Seneca Mine

Lake

Seneca Strip #1 & 2

Routt

Senior Warden Mine

San Juan

Miscellaneous "S"

Senorita Girl

Ouray

September Morn

Montrose

September Morn Mine

Boulder

Miscellaneous "S"

Sesmo

Montrose

Seven D Tunnel

Routt

Seven Devils

Jefferson

Seven Devils

Lake

Seven Thirty Mine

Boulder

Seven Thirty Mine

Gilpin

Seven Thousand Islands

Mesa

Miscellaneous "S"

Seventy Six Shaft

Lake

Sexton Brothers Drilling

Montezuma

Sexton Brothers Drilling

Montrose

Miscellaneous "S"

Sexton Brothers Drilling & Contracting Company

San Miguel

Miscellaneous "S"

Shadow Mountain Dam

Grand

Miscellaneous "S"

Shafter Mine

Clear Creek

Shakespeare Group

Summit

Miscellaneous "S"

Shalako No. 1

La Plata

Shale Oil Syndicate

Garfield

Miscellaneous S

Shamrock

Montrose

Miscellaneous "S"

Shamrock & Atlantic Cable

Dolores

Shamrock Claim

Fremont

Miscellaneous S

Shamrock Tunnel

Pitkin

Shamus O'Brien

Lake

Shamus O'Brien Mine

San Miguel

Sharkey Mine

Montrose

Shattuck Chemical Company

Denver

Miscellaneous "S"

Shaun Lode

Custer

Shaw Mines Corporation

San Juan

Miscellaneous "S"

Shawnee #1

Park

Shawnee Gold Mining Company

Teller

Miscellaneous "S"

Shawnut Mine

Saguache

Sheep Mountain

Jackson

Miscellaneous "S"

Sheik

Gunnison

Sheila #1

San Miguel

Shelby

Park

Sheller Mine

Gilpin

Miscellaneous "S"

Shenandoah

San Juan

Sheridan Cross Cut

San Miguel

Sheriff Mine

Teller

Sherman Tunnel

Gilpin

Shiller

Gilpin

Miscellaneous "S"

Shipman Drilling Company

Montrose

Miscellaneous "S"

Shiprock Limited

Mesa

Miscellaneous "S"

Shirk Mining Company

Boulder

Miscellaneous "S"

Shirley

San Miguel

Miscellaneous "S"

Shirley May

Park

Shirley Mine

Boulder

Shirley No. 3

Chaffee

Shoe Basin Mine

Summit

Shoemaker Mine

San Miguel

Showboat

Montrose

Shuffle

Montrose

Miscellaneous "S"

Shumway Drilling

San Miguel

Miscellaneous "S"

Shurtloff Dump

Teller

Shylock & Double Header

Chaffee

Miscellaneous "S"

Sidney Tunnel

Clear Creek

Signal Mining & Milling Company

Boulder

Miscellaneous "S"

Silent Friend

Gunnison

Silent Friend

Gunnison

Miscellaneous S

Silent Friend Group

San Juan

Silent Friend Mine

Clear Creek

Miscellaneous "S"

Silica Beryl

Larimer

Sill Mine

Clear Creek

Siloam Gold Mining Company

Boulder

Miscellaneous "S"

Silver Bear

Gunnison

Miscellaneous S

Silver Bell Group

Mesa

Miscellaneous "S"

Silver Bell Mine

San Miguel

Silver Belle

Clear Creek

Silver Chief Group

Gunnison

Miscellaneous S

Silver Cloud

San Juan

Silver Cloud

Summit

Silver Cloud Mine

Clear Creek

Silver Coin Mine

San Juan

Miscellaneous "S"

Silver Creek

Saguache

Silver Crown

San Juan

Silver Crown Tunnel

Custer

Miscellaneous "S"

Silver Dollar Mine

Boulder

Miscellaneous "S"

Silver Dollar Mine

Gilpin

Silver Dollat #1

Montrose

Silver Edge Mine

Summit

Silver Fleece

Hinsdale

Silver Gulch Company

Dolores

Silver Hook Mine

Gilpin

Miscellaneous "S"

Silver Horde Mining & Milling Company

Mineral

Miscellaneous "S"

Silver Jack

Gunnison

Silver Jack Mine

Hinsdale

Silver Jim

Clear Creek

Miscellaneous "S"

Silver Key Mine

Hinsdale

Silver King

Chaffee

Miscellaneous "S"

Silver King

Ouray

Miscellaneous "S"

Silver King Extension

Gilpin

Miscellaneous "S"

Silver King Mine

Clear Creek

Silver King Mine

Gilpin

Silver King Mine

Mineral

Silver King Mine

Summit

Silver King No. 2

Gilpin

Miscellaneous "S"

Silver Lake

San Juan

Silver Lake Dam Job #54

Boulder

Miscellaneous "S"

Silver Leaf Lode Mining Company

Hinsdale

Miscellaneous "S"

Silver Ledge

San Juan

Silver Link Mine

Ouray

Silver Mine

Lake

Silver Mines Company

Pitkin

Silver Mountain

Ouray

Silver Mountain Mine

Clear Creek

Silver Nugget

Montezuma

Silver Pick

Mesa

Silver Pick

Montezuma

Miscellaneous "S"

Silver Pick

San Miguel

Silver Plume Silver Company

Clear Creek

Silver Plume Tunnel

Clear Creek

Silver Queen

Boulder

Miscellaneous "S"

Silver Queen

San Juan

Silver Queen

Summit

Silver Queen Mine

Clear Creek

Silver Queen Mine

Ouray

Silver Queen Tunnel

Eagle

Miscellaneous "S"

Silver Real Mine

Custer

Silver Reef Group

Hinsdale

Miscellaneous "S"

Silver Siding Group

Boulder

Silver Spoon

Clear Creek

Miscellaneous "S"

Silver Spruce

Gunnison

Silver Spruce Mine

Gilpin

Miscellaneous "S"

Silver Spruce Mining & Milling Company

Gunnison

Miscellaneous S

Silver Stallion Mining Company

Gilpin

Miscellaneous "S"

Silver Star

Clear Creek

Miscellaneous "S"

Silver Star Mine

Gilpin

Silver State

Teller

Silver State Group

Ouray

Miscellaneous "S"

Silver Swan Mine

Dolores

Silver Tip Gold Crown

Ouray

Silver Tip Mining Company

Summit

Miscellaneous "S"

Silver Trip Mine

San Miguel

Silver Tunnel

Clear Creek

Silver Wave Mine

Park

Silver Wind Mine

Clear Creek

Silver Wing

Summit

Silver Wing Mine

Clear Creek

Silver Wing Mine

San Juan

Silvertip

Grand

Simcoe Mining & Milling Company

Lake

Miscellaneous "S"

Singlejack #1

San Miguel

Miscellaneous "S"

Sisk

Boulder

Siskiyon

Conejos

Miscellaneous S

Sitting Bull

Teller

Sitton

San Miguel

Sitton Shaft

San Miguel

Six Points Mine

Teller

Skek City Mine

Custer

Skelton Incorporated

Montrose

Miscellaneous "S"

Skunk Tunnel

Boulder

Sky City Mine

Saguache

Skylark

San Miguel

Miscellaneous "S"

Skyline Group

Gunnison

Sleeping Giant

Gilpin

Miscellaneous "S"

Sleepy Cat

Rio Blanco

Miscellaneous "S"

Sleppy Hollow Group

Teller

Miscellaneous "S"

Slide

San Miguel

Slide Mine

Boulder

Slide Mine

San Juan

Slide Tunnel

Pitkin

Miscellaneous "S"

Slim's Chance

Chaffee

Miscellaneous "S"

Slip Up

Fremont

Small Spot

Mesa

Smaller

Fremont

Miscellaneous S

Smiling Ann

San Miguel

Miscellaneous "S"

Smith & Wesson No. 1 & No. 2

Clear Creek

Smith Cinnabar

Saguache

Smith Drilling Company

Montrose

Smith Fork Project

Delta

Smith Tunnel

Gilpin

Smith Tunnel

Lake

Smuggler Leasing Company

Pitkin

Smuggler Leasing Company

Pitkin

Miscellaneous "N"

Smuggler Mine

Boulder

Smuggler Mine

Clear Creek

Smuggler Mine

Gilpin

Smuggler Oil & Mines Company

Boulder

Miscellaneous "S"

Smuggler Sunbeam Company

Conejos

Smuggler Union

San Miguel

Snider Feldspar

Clear Creek

Miscellaneous "S"

Snooks Tunnel

Gilpin

Snooper Dickson

Fremont

Snow Flake Tunnel

Boulder

Miscellaneous "S"

Snow Lode Tunnel

Lake

Snow Shoe Mine

Mesa

Snowden Mine

Gilpin

Snowflake

Ouray

Miscellaneous "S"

Snowflake Tunnel

Chaffee

Miscellaneous "S"

Soil Sampling Service, Incorporated

San Miguel

Miscellaneous "S"

Soldier Boy

Montrose

Miscellaneous "S"

Soldier Boy Mine

Gilpin

Miscellaneous "S"

Soldier Canyon Dam

Larimer

Miscellaneous "S"

Solitaire Mine

Teller

Miscellaneous "S"

Solomon Mine

Mineral

Solomon Mine

Teller

Somerset Mine

Gunnison

Songbird

Saguache

Miscellaneous "S"

South American

Clear Creek

Miscellaneous "S"

South Black Foot

Montrose

Miscellaneous "S"

South Burns Mine

Teller

South Dakota

Ouray

Miscellaneous "S"

South Dakota

San Juan

Miscellaneous "S"

South Groundhog

Montrose

Miscellaneous "S"

South Happy Thought

Montrose

Miscellaneous "S"

South London

Park

South Moyer Mine

Lake

South Suburban Dam

El Paso

Miscellaneous "S"

South Suburban Reservoir

El Paso

Miscellaneous "S"

South Western Drilling Company

Montrose

Miscellaneous "S"

South Winnie

Lake

Southern Boy Group

La Plata

Southern Cross Mine

Routt

Southern Geophysical Company

Mesa

Miscellaneous "S"

Southern Illionois Gold Mining Company

Boulder

Miscellaneous "S"

Southfield Mine

Fremont

Miscellaneous S

Space Ship

San Miguel

Miscellaneous "S"

Spar

Ouray

Miscellaneous "S"

Spar City

Mineral

Spar Consolidated Mining

Pitkin

Spar Group #1, 2, 3, 4, 5

San Miguel

Sparkling Jewel Mine

Boulder

Miscellaneous "S"

Sparling Ranch Vermiculite

Custer

Spartan No. 5

Boulder

Spavia Mine

Gilpin

Miscellaneous "S"

Special Session

San Miguel

Miscellaneous "S"

Specie Payment Mine

Clear Creek

Specimen Mine

Teller

Speedy

Chaffee

Miscellaneous "S"

Spencer & Morris Group No. 1 & 2

Montezuma

Spencer Mountain Group

Boulder

Sphinx

Montrose

Spider Leg

Boulder

Spink Canyon Test Site

Garfield

Miscell. Coal

Spotted Horse Mine

Gilpin

Sprague & Henwood

Mesa

Sprague & Henwood

Montrose

Spread Eagle Mining Company

Eagle

Miscellaneous "S"

Spring & Spring No. 1 & 2

Mesa

Spring Butte Mine

Pitkin

Spring Creek Dam

Gunnison

Miscellaneous S

Spring Day Extension

Gilpin

Spring Gulch Mine

Saguache

Springdale Mine

Gilpin

Springfield

Gunnison

Miscellaneous S

Spruce Tree & Cabin Lodes

Boulder

Miscellaneous "S"

Spud Patch

San Miguel

Spur Daisy Mine

Gilpin

Square Deal Gold Mining Company

Gilpin

Miscellaneous "S"

Square Deal Group

Summit

Miscellaneous "S"

St. Ann Mine

Lake

St. Anthony Lease Mines Company

Montrose

Miscellaneous "S"

St. Elmo Mine

Summit

St. Elmo Queen Mining Company

Chaffee

Miscellaneous "S"

St. Elmo Reduction Company

Chaffee

Miscellaneous "S"

St. George Mine

Clear Creek

St. Joe Mine

Boulder

St. Joe Mine

Summit

Miscellaneous "S"

St. John Group

Gilpin

St. John Mine

Ouray

Miscellaneous "S"

St. John Mine

Summit

St. John Water Tunnel

Teller

St. Jude

San Miguel

St. Kevin

Lake

Miscellaneous "S"

St. Lawrence Mine

Ouray

St. Louis

Dolores

St. Louis Lode Mine

Clear Creek

Miscellaneous "S"

St. Louis Mine

Lake

St. Louis Mine

Saguache

St. Louis No. 2 Tunnel

Grand

St. Mary #2

Fremont

Miscellaneous S

St. Mary's Mining Company

Hinsdale

St. Patrick

Montrose

St. Patrick # 7

Montrose

St. Patrick # 9

Montrose

St. Paul Mine

San Juan

St. Vrain Petroleum

Larimer

Miscellaneous "V"

Staats Mining Company

San Miguel

Miscellaneous "S"

Stafford #5

Mesa

Miscellaneous "S"

Staley Group

Custer

Miscellaneous "S"

Stamey - Mackey Construction Company

Pitkin

Miscellaneous "S"

Standard Chemical Company

Montrose

Standard Copper Corporation

Chaffee

Miscellaneous "S"

Standard Gold & Copper

Chaffee

Standard Mine

Clear Creek

Standard Mine

Summit

Standard Mining Investment Company

Gunnison

Miscellaneous S

Standard Shale Products Company

Garfield

Miscellaneous S

Stanley Mine

Clear Creek

Star

Custer

Miscellaneous "S"

Star

La Plata

Star #1

Pitkin

Miscellaneous "S"

Star #13

Montrose

Star & Crescent Mine

Ouray

Miscellaneous "S"

Star Group

Gunnison

Star Group

Montrose

Star Group

Saguache

Miscellaneous "S"

Star King Gold Mining Company

Teller

Miscellaneous "S"

Star Mine

Lake

Star of Bethlehem Mine

Teller

Star of the West

Eagle

Star of the West

Gilpin

Star of the West

Lake

Star of the West

Summit

Star of the West Mine

Clear Creek

Miscellaneous "S"

Star Tunnel

Clear Creek

Star Tunnel

Gunnison

Miscellaneous S

Star Tunnel & Mining

Gilpin

Starkville

Las Animas

State National Lode Mine

Boulder

Miscellaneous "S"

Statesman Tunnel

Pitkin

Miscellaneous "S"

Stearns Rogers Tunnel

Gunnison

Stebec Mining & Milling Company

Clear Creek

Miscellaneous "S"

Steel Alloys Company

Denver

Miscellaneous "S"

Steel Galena Mine

Custer

Miscellaneous "S"

Steel Galena Mine

Ouray