|
Mine
|
County
|
|
L. C. Rockwell
|
Gilpin
|
|
L. L. B. Mining Company
|
Summit
|
|
L. L. Mining & Tunnel Company
|
Ouray
|
|
L. P. Incline
|
Montrose
|
|
L. P. Lyons Holdings
|
Garfield
|
|
L. R. French Drilling
|
Mesa
|
|
L. R. French Drilling
|
Montrose
|
|
L. R. French Water Wells
|
Montrose
|
|
L. S. Wood
|
Pitkin
|
|
La Clide Mine
|
Clear Creek
|
|
La Crosse
|
Gilpin
|
|
La Florecita Mine
|
Chaffee
|
|
La Garita Mines & Mill
|
Saguache
|
|
La Junta
|
San Miguel
|
|
La Junta Mining & Milling Company
|
Chaffee
|
|
La Junta Oil Shale Pit
|
Ouray
|
|
La Junta Shale Pit
|
Otero
|
|
La Paz No. 1
|
Mesa
|
|
La Plata
|
Lake
|
|
La Plata Gold Placers
|
La Plata
|
|
La Plata Project
|
La Plata
|
|
La Rue
|
Saguache
|
|
La Sal Copper Mining Company
|
Montrose
|
|
La Salle Shaft No. 1
|
Montrose
|
|
Lackawanna Mine
|
San Juan
|
|
Ladwig
|
Jefferson
|
|
Lady Bell Mine
|
Eagle
|
|
Lady Bug
|
Boulder
|
|
Lady Bug
|
Rio Grande
|
|
Lady Eleanora Mine
|
La Plata
|
|
Lady Ellen Mine
|
San Juan
|
|
Lady Franklin
|
Custer
|
|
Lady Franklin Mine
|
Boulder
|
|
Lady Luck
|
Boulder
|
|
Lady Moon Mine
|
Larimer
|
|
Lagonda Mining & Milling Company
|
Boulder
|
|
Laird Mine
|
Summit
|
|
Lakalucre
|
Dolores
|
|
Lake
|
Boulder
|
|
Lake George Fluorspar
|
Park
|
|
Lake Irwin Dam
|
Gunnison
|
|
Lake Mine
|
Clear Creek
|
|
Lake Vieces
|
Dolores
|
|
Lake View Group
|
San Miguel
|
|
Lake Wood
|
Boulder
|
|
Lakewood
|
Lake
|
|
Laland Mining & Milling Company
|
Teller
|
|
Lalla Mine
|
Clear Creek
|
|
Lalla Roohk
|
Lake
|
|
Lallah Rookh Mine
|
Boulder
|
|
Lamar Mine
|
Boulder
|
|
Lamartine Mine
|
Clear Creek
|
|
Lamberson & Warren
|
Gilpin
|
|
Lambert Mine
|
Custer
|
|
Lame Duck Shaft
|
Teller
|
|
Lands End
|
Boulder
|
|
Landslide Mine
|
Summit
|
|
Lane and Franklin Drilling Company
|
Montrose
|
|
Lane Franklin Drilling Company
|
San Miguel
|
|
Langston
|
Larimer
|
|
Lanyon Zinc Company
|
Lake
|
|
Laokawanna Oil Shale Products Company
|
Garfield
|
|
Lark Mine
|
San Juan
|
|
Lark No. 1, 7, 8
|
Montrose
|
|
Larson
|
Gilpin
|
|
Larson Shaft
|
Teller
|
|
Las Framas Mine
|
Gilpin
|
|
LaSalle #1
|
Boulder
|
|
Last Chance
|
Chaffee
|
|
Last Chance
|
Clear Creek
|
|
Last Chance
|
Fremont
|
|
Last Chance
|
Hinsdale
|
|
Last Chance
|
Montrose
|
|
Last Chance
|
Park
|
|
Last Chance
|
San Miguel
|
|
Last Chance
|
Summit
|
|
Last Chance Mine
|
Boulder
|
|
Last Chance Mine
|
Custer
|
|
Last Chance Mine
|
Lake
|
|
Last Chance Mine
|
Mineral
|
|
Last Chance No. 2
|
Fremont
|
|
Last Day Mine
|
Rio Blanco
|
|
Last Dollar
|
Gilpin
|
|
Last Dollar Mine
|
San Miguel
|
|
Last Dollar Mine
|
Summit
|
|
Last Dollar Mine
|
Teller
|
|
Last Quarter
|
Custer
|
|
Latricia
|
San Miguel
|
|
Laura Dunsmore
|
Ouray
|
|
Lavada
|
Mesa
|
|
Law Mining & Milling
|
Clear Creek
|
|
Lawrence & Lindstedl
|
Montrose
|
|
Layman Mine
|
Boulder
|
|
Lazy L
|
Montrose
|
|
Le - Ru Mining
|
Montezuma
|
|
Le Clair Mine
|
Teller
|
|
Lead Belt
|
Clear Creek
|
|
Lead Chief
|
Gunnison
|
|
Lead King
|
Gunnison
|
|
Lead King Mine
|
Hinsdale
|
|
Lead King Mine
|
Park
|
|
Lead Mine
|
San Juan
|
|
Lead Mines
|
Hinsdale
|
|
Leader No. 1 & No. 2
|
Jackson
|
|
Leadville & Chicago Gold Mining Company
|
Lake
|
|
Leadville and Mt. Massive Tunnel
|
Lake
|
|
Leadville Construction Mining
|
Lake
|
|
Leadville Deep Mining
|
Lake
|
|
Leadville Drainage Tunnel
|
Lake
|
|
Leadville Lead
|
Lake
|
|
Leadville Mining & Milling Company
|
Lake
|
|
Leadville Mining Company Limited
|
Lake
|
|
Leadville Shale Oil & Refining Company
|
Mesa
|
|
Leadville Unit U. S. S. & R Company
|
Lake
|
|
League of Nations Tunnel
|
Clear Creek
|
|
Leavenworth Mine
|
Gilpin
|
|
Lebanon
|
Clear Creek
|
|
Leddy Barite Mine
|
Custer
|
|
Lee Ancell
|
Montrose
|
|
Lee Ancell
|
San Miguel
|
|
Lee C
|
San Miguel
|
|
Lee Gross Tunnel
|
Park
|
|
Lee Mine
|
Clear Creek
|
|
Leesa Kay
|
Gunnison
|
|
Left Hand Reservoir
|
Boulder
|
|
Leftwick Mining & Leasing Company
|
Park
|
|
Legal Tender
|
Saguache
|
|
Legal Tender Mine
|
Clear Creek
|
|
Legal Tender Mine
|
Ouray
|
|
Legion Mine
|
Clear Creek
|
|
Leidinger Mine
|
Gilpin
|
|
Leland Mining & Development Company
|
Teller
|
|
Lemon Dam
|
La Plata
|
|
Lena
|
Clear Creek
|
|
Leo the Lion Lode #1
|
Boulder
|
|
Leonetta Mine
|
Teller
|
|
Leopard Creek
|
San Miguel
|
|
Lepedolite #2
|
Gunnison
|
|
Letty Jones
|
San Miguel
|
|
Lev Gold Mining Company
|
Summit
|
|
Lewis
|
Montezuma
|
|
Lewis Group
|
Montrose
|
|
Lewis Mining Company
|
San Miguel
|
|
Lewis Mountain Mining & Milling Company
|
La Plata
|
|
Lexington Gold Mining Company
|
Teller
|
|
Lexington Mine
|
Clear Creek
|
|
Lexington Tunnel
|
Dolores
|
|
Leyden Shaft
|
Jefferson
|
|
Liberty Bell
|
Mesa
|
|
Liberty Bell Mine
|
San Miguel
|
|
Liberty Bell Tunnel
|
Summit
|
|
Liberty Group
|
Boulder
|
|
Liberty Leasing & Development Company
|
Summit
|
|
Liberty Mine
|
Clear Creek
|
|
Liberty Mine
|
Eagle
|
|
Liberty Mine
|
Gilpin
|
|
Liberty Mine
|
Saguache
|
|
Lida Leasing Company
|
Lake
|
|
Liddia Mine
|
Lake
|
|
Lightner Creek Group
|
La Plata
|
|
Lillian Mine
|
Gilpin
|
|
Lillian Mine
|
Lake
|
|
Lillie D Mine
|
Dolores
|
|
Lillie Mine
|
Hinsdale
|
|
Lilly Mine
|
Lake
|
|
Lily Mine
|
Chaffee
|
|
Lily MIne
|
Clear Creek
|
|
Lime Tunnnel
|
Lake
|
|
Limonite Mine
|
Park
|
|
Limonite Tunnel
|
Clear Creek
|
|
Lincoln
|
Boulder
|
|
Lincoln
|
Mesa
|
|
Lincoln Coal
|
Weld
|
|
Lincoln Gold Mining Company
|
Summit
|
|
Lincoln Group
|
Clear Creek
|
|
Lincoln, Washington, Jefferson & Edna
|
Custer
|
|
Linda #2
|
Mesa
|
|
Linda No. 1 & 2
|
Gilpin
|
|
Lindy Point
|
Mesa
|
|
Ling Group
|
Park
|
|
Ling Mine
|
Summit
|
|
Link Lode
|
Gilpin
|
|
Lion Gold Mining & Milling Company
|
San Juan
|
|
Lionel Mine
|
Chaffee
|
|
Lippoweth & Wein
|
Mesa
|
|
Lisbon Tunnel
|
Mesa
|
|
Litchfield Mining & Milling Company
|
San Miguel
|
|
Little Abney
|
Fremont
|
|
Little Albert
|
Clear Creek
|
|
Little Alice
|
Lake
|
|
Little Alice
|
Montrose
|
|
Little Anna Mine
|
Gilpin
|
|
Little Anne Tunnel
|
Chaffee
|
|
Little Annie Claim
|
Custer
|
|
Little Annie Mine
|
Pitkin
|
|
Little Annie Tunnel
|
Chaffee
|
|
Little Artist
|
Summit
|
|
Little Balm of Gilead
|
Ouray
|
|
Little Basin
|
Montrose
|
|
Little Bell & Extension Mines
|
Boulder
|
|
Little Bertha Lode
|
Lake
|
|
Little Bob
|
Lake
|
|
Little Bob #1
|
Montrose
|
|
Little Bonanza Mill
|
Saguache
|
|
Little Brother
|
Jefferson
|
|
Little Buckhorn
|
Montrose
|
|
Little Casino
|
Hinsdale
|
|
Little Champion Mines
|
Clear Creek
|
|
Little Chicago
|
Lake
|
|
Little Chief Mining
|
Lake
|
|
Little Colonel
|
Gilpin
|
|
Little Cub Mine
|
Clear Creek
|
|
Little Daisy
|
Summit
|
|
Little Darling
|
Gunnison
|
|
Little Dick
|
Montrose
|
|
Little Dora Mine
|
San Juan
|
|
Little Dot
|
Montrose
|
|
Little Duzy
|
Jefferson
|
|
Little Ella
|
Clear Creek
|
|
Little Ellen Gold Mining & Milling Company
|
Teller
|
|
Little Ellen Mine
|
Lake
|
|
Little Emma Mine
|
Clear Creek
|
|
Little Emma Mine
|
Summit
|
|
Little Fannie Mine
|
San Juan
|
|
Little Fanny
|
Park
|
|
Little Faun #1
|
Montrose
|
|
Little Florence Mine
|
Teller
|
|
Little Fool Mine
|
Summit
|
|
Little Giant
|
Teller
|
|
Little Giant and Peerless
|
San Juan
|
|
Little Giant Gold Mining & Milling Company
|
Gilpin
|
|
Little Giant Mine
|
Boulder
|
|
Little Giant Mine
|
Clear Creek
|
|
Little Giant Mining Company
|
San Juan
|
|
Little Gyp Group
|
Montrose
|
|
Little Hand
|
Clear Creek
|
|
Little Harry Mine
|
Clear Creek
|
|
Little Helen
|
Larimer
|
|
Little Helen
|
San Miguel
|
|
Little Hope
|
Jefferson
|
|
Little Hope
|
Summit
|
|
Little Ida Mine
|
San Juan
|
|
Little Ida Mine
|
Teller
|
|
Little Jack Gold Mining
|
Lake
|
|
Little Jeff Mine
|
Saguache
|
|
Little Jenny
|
Saguache
|
|
Little Jimmy
|
San Miguel
|
|
Little Joan Gold Mining Company
|
Teller
|
|
Little Joe
|
Clear Creek
|
|
Little Joe
|
Huerfano
|
|
Little Joe
|
Montrose
|
|
Little Joe
|
Park
|
|
Little Joe Mine
|
Clear Creek
|
|
Little John
|
Park
|
|
Little Johnnie Group
|
Gunnison
|
|
Little Johnnie Mine
|
Boulder
|
|
Little Johnnie Mine
|
Saguache
|
|
Little Johnny
|
Mesa
|
|
Little Jule Mine
|
Boulder
|
|
Little Lester
|
Boulder
|
|
Little Lori
|
Park
|
|
Little Mamie
|
Clear Creek
|
|
Little Maude Mine
|
San Juan
|
|
Little Maxine No 1, 2, 3, & 4
|
Boulder
|
|
Little May
|
Eagle
|
|
Little May Mine
|
Teller
|
|
Little Melvine
|
Gilpin
|
|
Little Miami Mining & Prospecting Company
|
Lake
|
|
Little Mike
|
Ouray
|
|
Little Nell
|
Park
|
|
Little Nell Mine
|
Jackson
|
|
Little Nell Mine
|
Lake
|
|
Little Nona Mine
|
La Plata
|
|
Little Opher Mine
|
Park
|
|
Little Pittsburg Mine
|
Boulder
|
|
Little Prince
|
Lake
|
|
Little Prince #1
|
Gunnison
|
|
Little Princess
|
Boulder
|
|
Little Rieche
|
Lake
|
|
Little Ruby
|
Park
|
|
Little Ruck Mines Company
|
Teller
|
|
Little Silver
|
Dolores
|
|
Little Star
|
Moffat
|
|
Little Star
|
Park
|
|
Little Ute Mine
|
Clear Creek
|
|
Livingston Mine
|
Boulder
|
|
Livingston Mine
|
Larimer
|
|
Lizard Head Mining Company
|
San Miguel
|
|
Lizzie G
|
San Miguel
|
|
Lloyd Mining Company
|
Eagle
|
|
Locklin
|
Baca
|
|
Lode Mining Company
|
Teller
|
|
Lode Star
|
Gilpin
|
|
Lodge Pole
|
Larimer
|
|
Lodge Pole No. 1
|
Custer
|
|
Log Cabin
|
Montrose
|
|
Logan Mine
|
Boulder
|
|
Lohansea Mine
|
Summit
|
|
Lombard Mine
|
Clear Creek
|
|
London Butte
|
Park
|
|
London Mine
|
Gilpin
|
|
London Mine
|
Park
|
|
London Mione
|
San Juan
|
|
Lone Jack
|
Park
|
|
Lone Peak # 1 & 2
|
San Miguel
|
|
Lone Pine
|
Montrose
|
|
Lone Pine Mine
|
Boulder
|
|
Lone Pine Mine
|
Larimer
|
|
Lone Pine Tunnel
|
Teller
|
|
Lone Star #1 & 2
|
San Miguel
|
|
Lone Star Mine
|
Gilpin
|
|
Lone Star Mine
|
Larimer
|
|
Lone Tree
|
San Miguel
|
|
Lone Tree Mine
|
Clear Creek
|
|
Long & Derry
|
Lake
|
|
Long Drilling Project
|
San Juan
|
|
Long Fellow Mine
|
Teller
|
|
Long Hunt
|
Fremont
|
|
Long Park Group
|
Montrose
|
|
Long Ridge
|
San Miguel
|
|
Long Shot
|
Boulder
|
|
Long Shot
|
Montrose
|
|
Long, Clyde
|
San Juan
|
|
Longfellow Claim
|
Chaffee
|
|
Longfellow Mine
|
Boulder
|
|
Longfellow Shaft
|
San Juan
|
|
Longyear Drilling Company
|
Montrose
|
|
Longyear, H. J.
|
Gunnison
|
|
Lookout
|
Boulder
|
|
Lookout
|
Larimer
|
|
Lookout
|
Saguache
|
|
Lookout
|
San Miguel
|
|
Lookout Mining Company
|
Boulder
|
|
Lord Byron
|
Boulder
|
|
Lord Byron Mine
|
Clear Creek
|
|
Los Angeles Mine
|
Teller
|
|
Los Ocho
|
Saguache
|
|
Lost Brothers
|
San Miguel
|
|
Lost Claim
|
San Miguel
|
|
Lost Dog
|
San Miguel
|
|
Lost Dutchman
|
Boulder
|
|
Lost Dutchman
|
Mesa
|
|
Lost Gold Mine
|
Gilpin
|
|
Lost Lake Mine
|
Boulder
|
|
Lost Mine
|
Montrose
|
|
Lost Treasurer Mine
|
San Juan
|
|
Lottie Mine
|
Gilpin
|
|
Louis Lintner
|
Clear Creek
|
|
Louis Lintner
|
Gilpin
|
|
Louisiana Mine
|
Gilpin
|
|
Louisville Mine
|
Lake
|
|
Louisville Mine
|
Park
|
|
Lovejoy Tunnel and Lillian Tunnel
|
Lake
|
|
Loveland Pass Highway Pilot Tunnel
|
Clear Creek
|
|
Loveland Pass Tunnel
|
Summit
|
|
Lower Koehler Tunnel
|
San Juan
|
|
Lower Oversite
|
Montrose
|
|
Loyal Gold Mining & Milling Company
|
Lake
|
|
Lucania
|
Clear Creek
|
|
Lucia
|
Gunnison
|
|
Lucianna
|
Clear Creek
|
|
Luck Two Mines Company
|
Boulder
|
|
Lucky #1
|
Montrose
|
|
Lucky 12
|
Custer
|
|
Lucky B
|
San Miguel
|
|
Lucky Ben
|
El Paso
|
|
Lucky Blunder
|
Montrose
|
|
Lucky Boy
|
Gunnison
|
|
Lucky Boy
|
Mesa
|
|
Lucky Boy
|
Montrose
|
|
Lucky Boy
|
Park
|
|
Lucky Day
|
Montrose
|
|
Lucky Day Group
|
San Miguel
|
|
Lucky Day Mine
|
Mesa
|
|
Lucky Dog
|
Montrose
|
|
Lucky Find Mine
|
Clear Creek
|
|
Lucky Five
|
Lake
|
|
Lucky Four Gold Mining Company
|
La Plata
|
|
Lucky Friday Mining Company
|
Clear Creek
|
|
Lucky Jack Mine
|
Chaffee
|
|
Lucky Jack Mine
|
San Juan
|
|
Lucky Jim
|
Park
|
|
Lucky Jim Mine
|
Gilpin
|
|
Lucky Lady
|
Boulder
|
|
Lucky Mine
|
Summit
|
|
Lucky Moon Mine
|
La Plata
|
|
Lucky Pine
|
Dolores
|
|
Lucky Rosemary
|
Larimer
|
|
Lucky Seven Shaft
|
Teller
|
|
Lucky Star Group
|
Boulder
|
|
Lucky Strike
|
Eagle
|
|
Lucky Strike
|
Park
|
|
Lucky Strike
|
San Miguel
|
|
Lucky Strike
|
Summit
|
|
Lucky Strike #1
|
Gilpin
|
|
Lucky Strike #2
|
Custer
|
|
Lucky Strike Claims
|
Gunnison
|
|
Lucky Strike Group
|
La Plata
|
|
Lucky Strike Mine
|
Clear Creek
|
|
Lucky Strike Mine
|
Fremont
|
|
Lucky Strike No. 1 and No. 2
|
Chaffee
|
|
Lucky Sunday
|
Grand
|
|
Lucky Sunday No. 1
|
Grand
|
|
Lucky Ten
|
Lake
|
|
Lucky Twenty Mine
|
Ouray
|
|
Lucky Two Mine
|
Gilpin
|
|
Lucretia
|
Gunnison
|
|
Luella Mine
|
Custer
|
|
Luke E. Smith Vermiculite Operation
|
Custer
|
|
Lukenbill Mine
|
Custer
|
|
Lula Group
|
Routt
|
|
Lulu Group
|
Gunnison
|
|
Lumsden
|
Mesa
|
