|
Mine
|
County
|
|
H & H Drilling Company
|
Montrose
|
|
H. and M. Mine
|
Custer
|
|
H. G. Wells & Company
|
Eagle
|
|
H. J. Longyear Company
|
Gunnison
|
|
H. S. M. I. Mining Company
|
Gunnison
|
|
Hackett
|
San Miguel
|
|
Hagar Mine
|
Grand
|
|
Half Moon Mine
|
Custer
|
|
Hall Mine
|
Gilpin
|
|
Hall Tungsten Mining & Milling Company
|
Gilpin
|
|
Halley Comet Mining & Reduction Company
|
Gilpin
|
|
Hallie - A - Mine
|
Boulder
|
|
Hamill Tunnel
|
Clear Creek
|
|
Hamilton Crushing Plant
|
Delta
|
|
Hamlet
|
San Juan
|
|
Hammer
|
Montrose
|
|
Hampton Mine
|
Gilpin
|
|
Hancock
|
Ouray
|
|
Hangover
|
San Miguel
|
|
Hansen Project
|
Fremont
|
|
Hansen Tunnel
|
Conejos
|
|
Hanson
|
Mesa
|
|
Happy
|
Montrose
|
|
Happy Day
|
Hinsdale
|
|
Happy Jack
|
Montrose
|
|
Happy Jack Mine
|
San Miguel
|
|
Happy Thought
|
Chaffee
|
|
Happy Thought
|
Mineral
|
|
Happy Thought
|
Montrose
|
|
Happy Thought
|
Park
|
|
Happy Thought Mine
|
Boulder
|
|
Happy Thought Mine
|
Grand
|
|
Haputa Ranch
|
Custer
|
|
Hardly & Able
|
San Miguel
|
|
Hardrock
|
Montrose
|
|
Hardrock Contractors Incorporated
|
La Plata
|
|
Harlem Mine
|
Clear Creek
|
|
Harlow Mine
|
Boulder
|
|
Harper - Larson Developing Company
|
Ouray
|
|
Harrington Shaft
|
Teller
|
|
Harrisburg
|
Park
|
|
Harrison
|
Clear Creek
|
|
Harrison Recovery Works
|
Lake
|
|
Harrison Reduction Dump
|
Lake
|
|
Harrison Tunnel
|
Gilpin
|
|
Harrison Tunnel
|
Summit
|
|
Harry Boy Mining Company
|
San Juan
|
|
Harsh Extension Lode
|
Gilpin
|
|
Hart Group
|
Teller
|
|
Hartman Jefferson
|
Saguache
|
|
Harvey Gap No. 3
|
Garfield
|
|
Harvey No . 1
|
Mesa
|
|
Harvey Real Estate, Mining & Investment Company
|
Lake
|
|
Hastings
|
Las Animas
|
|
Hastings Strip
|
Fremont
|
|
Hat
|
Montrose
|
|
Hattie Group
|
San Miguel
|
|
Hattie H. Mine
|
Gunnison
|
|
Hattie Jane Mine
|
Lake
|
|
Havalk
|
Teller
|
|
Havana Mining & Milling Company
|
San Miguel
|
|
Have Compensation
|
Park
|
|
Havilah
|
Teller
|
|
Hawkeye
|
Gunnison
|
|
Hawkeye Mines
|
Gilpin
|
|
Hawkeye Mining
|
Chaffee
|
|
Hawks Nest East
|
Gunnison
|
|
Hawks Nest No. 3
|
Gunnison
|
|
Hay Gulch
|
La Plata
|
|
Hayden Gulch Strip
|
Routt
|
|
Hayden Ranch
|
Lake
|
|
Hayes - Wheeler
|
Gilpin
|
|
Hayseed Mine
|
Gilpin
|
|
Haytrosser Shaft
|
Lake
|
|
Haywood
|
Gilpin
|
|
Hazel - Lu
|
Montezuma
|
|
Hazel Lode
|
Lake
|
|
Hazel M. Mine
|
La Plata
|
|
Hazel Marie
|
Park
|
|
Headlight Mine
|
Clear Creek
|
|
Headlight Mine
|
Gunnison
|
|
Healey Strip
|
Las Animas
|
|
Hearne Gold & Copper Company
|
Gilpin
|
|
Hector
|
Custer
|
|
Helen
|
Las Animas
|
|
Helen Gould
|
Gilpin
|
|
Helena Mine
|
Lake
|
|
Helenslea Mine
|
Clear Creek
|
|
Hematite
|
San Juan
|
|
Henderson
|
Mesa
|
|
Henrietta & Dixon
|
Eagle
|
|
Henrietta Mine
|
Lake
|
|
Henrietta Mine
|
San Juan
|
|
Henry Adney
|
Teller
|
|
Henry Clay
|
Montrose
|
|
Henry Wood Ore Testing Company
|
Denver
|
|
Heon, Raymond P.
|
Clear Creek
|
|
Herald Mine
|
Boulder
|
|
Hercules - Ajax Mine
|
Gunnison
|
|
Hercules Construction Company
|
San Juan
|
|
Hercules Gold Mining & Milling Company
|
Teller
|
|
Hercules Tunnel
|
Custer
|
|
Hereafter Mine
|
Boulder
|
|
Herewick Placers
|
Garfield
|
|
Hermes Mine
|
San Juan
|
|
Hermosa Gold Mining Company
|
Teller
|
|
Herr of Billried
|
San Juan
|
|
Hershburger
|
Chaffee
|
|
Hesperus #4 & #5
|
La Plata
|
|
Hess Tunnel
|
Lake
|
|
Hi - Tension Mine
|
Gilpin
|
|
Hi Wan
|
Jefferson
|
|
Hiawatha Mine
|
Teller
|
|
Hibbs, J. G. Ore Company
|
Boulder
|
|
Hibschle Mine
|
Lake
|
|
Hicks Mine
|
Dolores
|
|
Hidden Basin
|
Montrose
|
|
Hidden Diamond Mine
|
Clear Creek
|
|
Hidden Treasure
|
Boulder
|
|
Hidden Treasure
|
Clear Creek
|
|
Hidden Treasure
|
Mesa
|
|
Hidden Treasure
|
San Juan
|
|
Hidden Treasure
|
San Juan
|
|
Hidden Treasure
|
San Miguel
|
|
Hidden Treasure Group
|
Gilpin
|
|
Hidden Treasure Mine
|
Hinsdale
|
|
Hidden Treasure Mine
|
Ouray
|
|
Hide Above Lode
|
Larimer
|
|
Hide Away Lode
|
Larimer
|
|
Hideaway Mine #1
|
Boulder
|
|
High and Mighty
|
Gunnison
|
|
High Ball
|
Montrose
|
|
High Ball
|
Montrose
|
|
High Bernia
|
Dolores
|
|
High Five Mine
|
Clear Creek
|
|
High Grade Group
|
Clear Creek
|
|
High Park
|
Teller
|
|
Highland
|
Clear Creek
|
|
Highland Chief Mine
|
Lake
|
|
Highland Chief Mine
|
Ouray
|
|
Highland Mary
|
San Juan
|
|
Highland Mary
|
San Miguel
|
|
Highland Mary Mine
|
Lake
|
|
Highland Mary Mining Milling & Power Company
|
Boulder
|
|
Highland Tunnel
|
Pitkin
|
|
Highlander
|
Clear Creek
|
|
Highline Reservoir Dam
|
Mesa
|
|
Highline Tunnel
|
Boulder
|
|
Hildegarde
|
Boulder
|
|
Hill Billy
|
Boulder
|
|
Hill Top Group
|
Larimer
|
|
Hill Top Mine
|
Park
|
|
Hill Top Mine
|
Teller
|
|
Hillside
|
Boulder
|
|
Hillside Group
|
Pitkin
|
|
Himes Drilling Company
|
Mesa
|
|
Hit or Miss
|
Gilpin
|
|
Hiwassee Mine
|
Hinsdale
|
|
Hobo
|
Montrose
|
|
Hock Hocking Mine
|
Park
|
|
Hoffman & Boyd
|
San Juan
|
|
Hoffy
|
Ouray
|
|
Hogback Group
|
San Miguel
|
|
Hoil Mine
|
Park
|
|
Holden Smelting & Mining Company
|
Gilpin
|
|
Holland Mine
|
Gilpin
|
|
Holy Moses Tunnel
|
Mineral
|
|
Home Extension Mine
|
Lake
|
|
Home Gold Mines Company
|
Teller
|
|
Home Run Mine
|
Park
|
|
Home Run Mine
|
Teller
|
|
Home Sweet Home
|
Boulder
|
|
Homer Mine
|
Gilpin
|
|
Homestake
|
Garfield
|
|
Homestake
|
Gilpin
|
|
Homestake & Bighorn
|
Boulder
|
|
Homestake Gold Mining & Development Company
|
Clear Creek
|
|
Homestake Mine
|
Teller
|
|
Homestake Mining Company
|
Gunnison
|
|
Homestake Project
|
Chaffee
|
|
Homestake Project
|
Eagle
|
|
Homestake Project
|
El Paso
|
|
Homestake Project
|
Lake
|
|
Homestead Mine
|
Boulder
|
|
Hondo Gold Company
|
Teller
|
|
Honey Dew Group
|
La Plata
|
|
Honeydew Mine
|
Custer
|
|
Honeymoon Group
|
Montrose
|
|
Hoosac Tunnel
|
Clear Creek
|
|
Hoosier Boy Mine
|
Hinsdale
|
|
Hoosier Mine
|
Boulder
|
|
Hoosier Mine
|
Teller
|
|
Hoosier Pass Water Tunnel
|
Park
|
|
Hope
|
Boulder
|
|
Hope
|
Clear Creek
|
|
Hope #4
|
Park
|
|
Hope Group
|
Mesa
|
|
Hope Tunnel
|
Pitkin
|
|
Hopemore Mining Company
|
Lake
|
|
Hopewell Group
|
Gunnison
|
|
Hopf Garten
|
Gilpin
|
|
Horn Lode Survey 1228
|
Clear Creek
|
|
Horn Mine
|
Summit
|
|
Horn Silver Mine
|
Eagle
|
|
Horse Range
|
San Miguel
|
|
Horse Tooth Dam
|
Larimer
|
|
Horsehair Group
|
Montrose
|
|
Horseshoe Group
|
San Miguel
|
|
Horseshoe Mine
|
Boulder
|
|
Horseshoe Mine
|
Clear Creek
|
|
Horseshoe Mine
|
Fremont
|
|
Horseshoe Prince Mine
|
Lake
|
|
Horsfal Mine
|
Boulder
|
|
Hortense
|
Saguache
|
|
Hot Dog Mine
|
Montrose
|
|
Hot Drill #11
|
San Miguel
|
|
Hot Pot
|
Clear Creek
|
|
Hot Rock Group
|
Gunnison
|
|
Hot Shot
|
Montrose
|
|
Hot Shot
|
San Miguel
|
|
Hot Sulpher Springs Project
|
Grand
|
|
Howard & Barron Shaft
|
Teller
|
|
Howard Mine
|
Clear Creek
|
|
Hub Claim
|
Teller
|
|
Hub Oil Shale Company
|
Garfield
|
|
Hub Oil Shale Producing & Refining Company
|
Garfield
|
|
Hubbard Mine
|
Mesa
|
|
Huburt Mine
|
Gilpin
|
|
Huddleson
|
Gilpin
|
|
Hudson
|
Clear Creek
|
|
Hudson Leasing Company
|
Ouray
|
|
Hugh Mine
|
Lake
|
|
Hughes - Threewit Mining
|
Gilpin
|
|
Hugo
|
Boulder
|
|
Hugo Mine
|
San Miguel
|
|
Hull City Mine
|
Teller
|
|
Humble Oil
|
Hinsdale
|
|
Humboldt Gold Mining Milling & Investment Company
|
Boulder
|
|
Humboldt Milling & Smelting Company
|
Lake
|
|
Humboldt Mine
|
Boulder
|
|
Humboldt Mine
|
San Miguel
|
|
Humbolt Mine
|
Clear Creek
|
|
Humbolt Mine
|
Custer
|
|
Humdinger
|
Mesa
|
|
Hume Shaft
|
Lake
|
|
Hummer #1
|
Lake
|
|
Humming Bird Mining & Milling Company
|
Clear Creek
|
|
Hunkidory Mine
|
Summit
|
|
Hunter Mine
|
Summit
|
|
Hurd Lease
|
Fremont
|
|
Huron Mine
|
Boulder
|
|
Hurricane Mine
|
Pitkin
|
|
Hyattsville Mining, Milling, Tunnel & Transportation Co.
|
Clear Creek
|
|
Hyde
|
Ouray
|
|
Hyland Mine
|
Clear Creek
|
|
Ibex Mine
|
Lake
|
|
Ice Lake
|
San Juan
|
|
Ida Bell Mine
|
Summit
|
|
Ida Bell Shaft
|
Teller
|
|
Ida L Group of Mines
|
Ouray
|
|
Ida Lee Mine
|
Jackson
|
|
Ida May Mine
|
Gunnison
|
|
Ida May Mine
|
Teller
|
|
Idacolo Mine
|
Fremont
|
|
Idaho Bride Mine
|
Clear Creek
|
|
Idaho Mine
|
Boulder
|
|
Idaho Mine
|
La Plata
|
|
Idaho Springs
|
Clear Creek
|
|
Idaho Tunnel
|
Clear Creek
|
|
Ideal Gold Mining & Milling Company
|
Gilpin
|
|
Ideal Mine
|
Eagle
|
|
Ideal No. 2 Mine
|
Boulder
|
|
Idoline
|
Gunnison
|
|
Ike
|
San Miguel
|
|
Illinois
|
San Juan
|
|
Illinois Central Mines Company
|
Gilpin
|
|
Illinois Mine
|
Boulder
|
|
Illinois Mine
|
Gilpin
|
|
Illinois Mining Company
|
Boulder
|
|
Imperial & Mineral Queen Mine
|
Clear Creek
|
|
Imperial Chief Mining Company Inc.
|
Clear Creek
|
|
Imperial Coal
|
Weld
|
|
Incas Mine
|
La Plata
|
|
Incline Group
|
Mesa
|
|
Independence
|
Chaffee
|
|
Independence
|
Montrose
|
|
Independence
|
Saguache
|
|
Independence
|
San Juan
|
|
Independence Group
|
Pitkin
|
|
Independence Mine
|
Boulder
|
|
Independence Mine
|
Gilpin
|
|
Independence Tunnel
|
Clear Creek
|
|
Independent Group
|
Ouray
|
|
Independent Mine
|
Gilpin
|
|
Independent Mine
|
Gunnison
|
|
Index
|
Montrose
|
|
Index Mine
|
Teller
|
|
Index Shale Oil
|
Garfield
|
|
Indexoline Plant
|
Garfield
|
|
India Mine
|
Boulder
|
|
Indian Creek
|
Gunnison
|
|
Indian Girl
|
Gilpin
|
|
Indian Point Mine
|
Boulder
|
|
Indiana Mine
|
Gilpin
|
|
Indianola No. 1
|
Gilpin
|
|
Inez Tunnel
|
Gunnison
|
|
Ingram Mine
|
Boulder
|
|
Ingram Mine
|
Clear Creek
|
|
Inspiration
|
San Miguel
|
|
Inspiration Mine
|
Boulder
|
|
International Shaft
|
Teller
|
|
Intersection Company
|
San Juan
|
|
Invincible
|
Montrose
|
|
Iona Group
|
San Miguel
|
|
Ionex Leaching Plant
|
Routt
|
|
Ionex No. 1
|
Routt
|
|
Iowa and Iowa Tiger
|
San Juan
|
|
Iowa Mine
|
Boulder
|
|
Iowa Mine
|
Gilpin
|
|
Iowa Mine
|
Park
|
|
Irish Molly Mine
|
Teller
|
|
Irishwood - Ester
|
Chaffee
|
|
Iron Age Mine
|
Boulder
|
|
Iron Chest Mine
|
Chaffee
|
|
Iron Duke
|
Park
|
|
Iron Dyke Mine
|
Boulder
|
|
Iron Hat Mone
|
Lake
|
|
Iron Hill
|
Park
|
|
Iron Jack Mine
|
Eagle
|
|
Iron King
|
La Plata
|
|
Iron King Mine
|
Clear Creek
|
|
Iron Magnet Mine
|
San Juan
|
|
Iron Mask Mine
|
Summit
|
|
Iron Mass Group
|
Summit
|
|
Iron Mine
|
Boulder
|
|
Iron Mine
|
Gilpin
|
|
Iron Mountain Alloy Company
|
Denver
|
|
Iron Silver Mine
|
Boulder
|
|
Iron Springs Group
|
San Miguel
|
|
Ironclad Mine & Mill
|
Teller
|
|
Ironton Park Mine
|
Ouray
|
|
Isabell Shaft
|
Fremont
|
|
Isabella Mine
|
Teller
|
|
Isbell Construction Company
|
Garfield
|
|
Island View
|
Montrose
|
|
Isolde Mine
|
Hinsdale
|
|
Italian Caves
|
San Miguel
|
|
Italian Caves
|
Sedgewick
|
|
Ivanho Mine Dump and Mill
|
Gilpin
|
|
Izard Mine
|
Lake
|
