Mines in Park County, Colorado
498Total
62Active
Park County, Colorado has 498 mine and mineral deposit locations documented in federal records from the USGS and MSHA. 62 of these are currently active mining operations. The most commonly recorded commodity is uranium, with 100 sites. The table below lists all recorded mines in the county with links to individual site details.
All Mines in Park County
| Mine | Commodity | Type | Status | Source |
|---|---|---|---|---|
| Crusher #3 Portable | Construction Sand and Gravel | Surface | Active | MSHA |
| Fairplay-Trout Valley | Construction Sand and Gravel | Surface | Active | MSHA |
| Heartland Aggregate Mining | Construction Sand and Gravel | Surface | Active | MSHA |
| American Mine | Uranium | Underground | Producer | MRDS |
| Balfour Mines | Gold | Producer | MRDS | |
| Beaver Creek Mine | Iron | Producer | MRDS | |
| Betty Mine | Lead, Zinc, Copper | Producer | MRDS | |
| Big Sheep Horn | Tantalum, Beryllium, Niobium (Columbium) | Producer | MRDS | |
| Blue Bird | Feldspar | Producer | MRDS | |
| Blue, Joy, Champell, J&s#1, Boomer | Beryllium | Producer | MRDS | |
| Blue-Green Lodes | REE, Garnet, Feldspar, Quartz, Mica, Beryllium | Producer | MRDS | |
| Buckskin Joe | Lead, Zinc, Copper | Producer | MRDS | |
| Buckskin Joe | Silver, Gold, Lead, Copper, Zinc | Producer | MRDS | |
| Champaign and Coney Claim | Zinc, Gold, Silver, Lead | Producer | MRDS | |
| Christie Ward-Lucky Thirteen 1&2 | Feldspar, REE, Beryllium, Niobium (Columbium), Quartz, Mica | Producer | MRDS | |
| Crestline, Bedrock, J.b. Placers | Gold | Producer | MRDS | |
| Daniels Mine | Feldspar | Producer | MRDS | |
| Famous Lode Mica Prospect, Little Joe | Mica | Producer | MRDS | |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Guffey District, Southeast | Tungsten | Producer | MRDS | |
| Handcraft Gulch-Hall Valley | Iron | Producer | MRDS | |
| Haymon | Vermiculite | Producer | MRDS | |
| Hill Top Mine | Silver, Lead, Zinc | Producer | MRDS | |
| Katydid Mine | Feldspar, Mica | Producer | MRDS | |
| Katydid Mine | Underground | Producer | MRDS | |
| Lady Elk Lode | Uranium | Producer | MRDS | |
| McKinley Mine | Feldspar | Producer | MRDS | |
| Meyers Ranch Mine | Niobium (Columbium), Tantalum, Mica, Beryllium | Producer | MRDS | |
| Mineral Park | Lead | Producer | MRDS | |
| Missouri | Lead, Silver, Gold, Bismuth, Copper, Zinc | Producer | MRDS | |
| Quarry | Stone | Surface | Producer | MRDS |
| Quarry | Stone | Surface | Producer | MRDS |
| Redskin Mine | Beryllium | Producer | MRDS | |
| Redskin Mine | Uranium, Copper, Molybdenum, Beryllium | Producer | MRDS | |
| Round Mtn. Tungsten | Tungsten, Uranium, Tin | Producer | MRDS | |
| Russia Mine | Silver, Lead, Copper | Producer | MRDS | |
| Shelley Mine | Lead, Zinc, Silver | Producer | MRDS | |
| Silver Heels - Grand Union | Gold | Producer | MRDS | |
| Snowstorm | Gold | Producer | MRDS | |
| South London | Gold | Underground | Producer | MRDS |
| Sweet Home Mine | Underground | Producer | MRDS | |
| Teller Pegmatite Claim | REE, Fluorine-Fluorite | Producer | MRDS | |
| Unknown | Lead, Zinc | Producer | MRDS | |
| Unknown | Lead, Zinc, Gold | Producer | MRDS | |
| Unknown | Zinc, Lead | Producer | MRDS | |
| Unknown | Sand and Gravel, Construction | Producer | MRDS | |
| Unknown | Sand and Gravel, Construction | Producer | MRDS | |
| Unknown | Feldspar, Mica, Beryllium | Producer | MRDS | |
| Whale Mine | Copper, Lead, Gold, Silver | Producer | MRDS | |
| Wheeler | Tungsten | Producer | MRDS | |
| Ansley / 9 Pit | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| A & C Prospect | Beryllium | Surface | Past Producer | MRDS |
| Alma Plant | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Abel Mineral Land Prospect | Tungsten | Occurrence | MRDS | |
| Aetna | Uranium | Underground | Past Producer | MRDS |
| Ajax Mine | Gold, Silver | Underground | Past Producer | MRDS |
| Allegheny Placer | Uranium | Underground | Past Producer | MRDS |
| Allen Pit | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Alma & S Alma Dist Survey | Lead | Underground | Past Producer | MRDS |
| Alma No.1 | Lead, Zinc | Underground | Past Producer | MRDS |
| Alma Placer | Gold Ore | Surface | Intermittent | MSHA |
| Alma Placer & Leaching Plant | Gold | Surface | Occurrence | MRDS |
| Alma Placers | Gold, Sand and Gravel, Construction | Past Producer | MRDS | |
| American | Gold | Underground | Occurrence | MRDS |
| American Flag | Lead | Underground | Past Producer | MRDS |
| American Mill | Lead, Silver, Gold | Processing Plant | Past Producer | MRDS |
| Antero Basin Uranium Prospect | Occurrence | MRDS | ||
| Antero Gravel Pit | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Apex | Uranium | Underground | Past Producer | MRDS |
| Apex Mine | Gold, Silver | Past Producer | MRDS | |
| April Fool #1,#3 | Uranium | Underground | Past Producer | MRDS |
| Aspen Lode Pegmatite | Feldspar | Surface | Past Producer | MRDS |
| Aspen Lode Pegmatites | Fluorine-Fluorite | Occurrence | MRDS | |
| B & G Claim | Tungsten | Occurrence | MRDS | |
| B F D | Uranium | Underground | Past Producer | MRDS |
| Badger Boy Shaft | Uranium | Underground | Past Producer | MRDS |
| Badger Flats Area | Beryllium | Past Producer | MRDS | |
| Badger Group Prospect | Tungsten | Occurrence | MRDS | |
| Balfour Mines | Uranium | Underground | Past Producer | MRDS |
| Baltic #1 | Uranium | Underground | Past Producer | MRDS |
| Barco | Uranium | Surface | Past Producer | MRDS |
| Baumer Pegmatite | Mica, Niobium (Columbium), Tantalum, REE, Thorium | Occurrence | MRDS | |
| Baumer Pegmatite Prospect | Uranium, Thorium, REE | Occurrence | MRDS | |
| Bearcat Mines | Uranium | Underground | Past Producer | MRDS |
| Beaver Creek Iron Mine | Iron | Underground | Past Producer | MRDS |
| Beaver Creek Placer | Gold | Occurrence | MRDS | |
| Beryllium Lode | Feldspar | Past Producer | MRDS | |
| Beryllium Lode Prospect | Mica, Feldspar, Beryllium | Occurrence | MRDS | |
| Beryllium Mine | Mica | Underground | Past Producer | MRDS |
| Betty Mine | Lead | Underground | Past Producer | MRDS |
| Big Sheep Horn Claim | Feldspar | Underground | Past Producer | MRDS |
| Black Cloud Group | Uranium | Underground | Past Producer | MRDS |
| Black Eagle | Lead | Underground | Unknown | MRDS |
| Black Mountain | Underground | Prospect | MRDS | |
| Black Mountain Deposit | Pumice | Occurrence | MRDS | |
| Black Prince Mine | Beryllium | Occurrence | MRDS | |
| Black Prince Mine | Beryllium | Past Producer | MRDS | |
| Blanchard | Uranium | Underground | Past Producer | MRDS |
| Blue Bird | Feldspar | Underground | Past Producer | MRDS |
| Blue Jay Mine | Beryllium, Molybdenum, Tungsten, Uranium | Occurrence | MRDS | |
| Blue Mountain Mine | Copper | Occurrence | MRDS | |
| Blue Mountain Prospect | Occurrence | MRDS | ||
| Blue-Green Lodes #1,#2 | Feldspar | Underground | Past Producer | MRDS |
| Bob Roy Shaft | Uranium | Underground | Past Producer | MRDS |
| Bonanza Group | Lead, Zinc | Occurrence | MRDS | |
| Bonanza Group | Lead | Surface | Past Producer | MRDS |
| Boomer | Beryllium | Underground | Past Producer | MRDS |
| Boomer Mine | Beryllium | Past Producer | MRDS | |
| Box Creek Placer Mine | Gold Ore | Surface | Abandoned | MSHA |
| Buckskin Gulch Placers | Gold | Occurrence | MRDS | |
| Buckskin Joe Mine | Gold | Underground | Past Producer | MRDS |
| Bullger Basin | Gold Ore | Surface | Intermittent | MSHA |
| Butte Tunnel | Gold | Underground | Past Producer | MRDS |
| Can Epps Placer | Gold | Occurrence | MRDS | |
| Carey Placer | Gold | Occurrence | MRDS | |
| Carson Mining and Development | Uranium | Occurrence | MRDS | |
| Carson Mining and Development | Underground | Unknown | MRDS | |
| Caylor | Barium-Barite | Past Producer | MRDS | |
| Caylor | Barium-Barite | Surface | Past Producer | MRDS |
| Centennial Tunnel | Uranium | Underground | Past Producer | MRDS |
| Champaign & Coney Claims | Uranium | Surface | Past Producer | MRDS |
| Champaign Mine | Silver | Underground | Past Producer | MRDS |
| Champaign and Coney Mines | Gold, Silver, Uranium | Occurrence | MRDS | |
| Champell Mine | Beryllium | Occurrence | MRDS | |
| China Wall Area | Beryllium | Past Producer | MRDS | |
| Christe-Ward-Lucky 13 #1,#2 | Feldspar | Underground | Past Producer | MRDS |
| Chumway Park | Uranium | Occurrence | MRDS | |
| Chumway Park | Underground | Prospect | MRDS | |
| Cleaner, Criterion, Caroline | Lead, Zinc | Occurrence | MRDS | |
| Climax Molybdenum Mine | Tungsten, Molybdenum, Tin, REE | Occurrence | MRDS | |
| Cline Bench Placers | Gold | Occurrence | MRDS | |
| Clipper Lower,middle,upper | Uranium | Underground | Past Producer | MRDS |
| Combination Placer | Gold Ore | Surface | Abandoned | MSHA |
| Copper King Mine | Gold, Copper | Past Producer | MRDS | |
| Copper King Prospect | Feldspar, Mica | Occurrence | MRDS | |
| Copper King Prospect | Feldspar | Underground | Past Producer | MRDS |
| Cornish Wall | Uranium | Underground | Past Producer | MRDS |
| Crescent Mine | Tungsten, Copper, Zinc | Past Producer | MRDS | |
| Creskill Group | Lead | Underground | Past Producer | MRDS |
| Criterion Claim | Lead, Zinc | Occurrence | MRDS | |
| Criterion Mine | Gold | Underground | Past Producer | MRDS |
| Dauntless Mine | Silver | Underground | Past Producer | MRDS |
| Deadwood Gulch Claims | Lead | Underground | Past Producer | MRDS |
| Deadwood Gulch Placers | Gold | Occurrence | MRDS | |
| Dempsey | Uranium | Underground | Past Producer | MRDS |
| Denver Mine | Uranium | Underground | Past Producer | MRDS |
| Destiny Pit | Gold Ore | Surface | Intermittent | MSHA |
| Detroit City Mine | Gemstones | Underground | Abandoned | MSHA |
| Disberger | Uranium | Surface | Past Producer | MRDS |
| Dolly Varden | Silver | Underground | Past Producer | MRDS |
| Dolly Varden Et Al | Silver, Gold, Copper, Zinc | Occurrence | MRDS | |
| Donna Lou | Fluorine-Fluorite | Surface | Past Producer | MRDS |
| Donna Lou, Guernsey | Fluorine-Fluorite | Occurrence | MRDS | |
| Dorothy Group Prospect | Tungsten | Occurrence | MRDS | |
| Duvall Discovery | Underground | Unknown | MRDS | |
| Dyer Placer | Gold | Occurrence | MRDS | |
| East London | Uranium | Underground | Past Producer | MRDS |
| East-West Pegmatite | Beryllium, REE, Thorium, Niobium (Columbium) | Occurrence | MRDS | |
| Emma | Uranium | Underground | Past Producer | MRDS |
| Evening Star | Lead | Underground | Past Producer | MRDS |
| Excelsior Mining Group | Uranium | Underground | Past Producer | MRDS |
| Fairplay | Gold Ore | Surface | Abandoned | MSHA |
| Fairplay Placer | Gold | Placer | Past Producer | MRDS |
| Fairplay Placer | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Famous Lode Mica Prospect | Mica, Feldspar | Occurrence | MRDS | |
| Famous Lode Prospect | Mica | Surface | Occurrence | MRDS |
| Fannie Barret Mine | Manganese | Occurrence | MRDS | |
| Fanny #1,#2,#3,#4 | Manganese | Underground | Past Producer | MRDS |
| Fortune Placer | Gold | Occurrence | MRDS | |
| Fortune Placer Mine | Lead, Zinc | Placer | Past Producer | MRDS |
| Fraction | Uranium | Underground | Past Producer | MRDS |
| Freedom | Uranium | Underground | Past Producer | MRDS |
| Garo Deposit | Vanadium, Radium, Uranium | Past Producer | MRDS | |
| Garo Prospect | Vanadium | Underground | Past Producer | MRDS |
| Gem Dandy Prospect | Uranium | Past Producer | MRDS | |
| Gettysburg Mine | Lead, Zinc | Underground | Past Producer | MRDS |
| Gilley Ranch Prospect | Tungsten, Gold | Occurrence | MRDS | |
| Goermer Lease | Uranium | Past Producer | MRDS | |
| Gold Dirt | Gold | Unknown | MRDS | |
| Gold Fern | Zinc | Underground | Past Producer | MRDS |
| Gold Star Prospect | Uranium | Occurrence | MRDS | |
| Golden | Uranium | Underground | Past Producer | MRDS |
| Golden Gross Mine | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Gore Mine | Lead | Underground | Past Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Gravel Pit | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Great West | Gold | Underground | Past Producer | MRDS |
| Great Western Mine | Lead | Underground | Past Producer | MRDS |
| Greater Tallahassee Creek Uranium Prospect | Occurrence | MRDS | ||
| Grebb Placer | Gold | Occurrence | MRDS | |
| Greenfield Tunnel | Uranium | Surface | Past Producer | MRDS |
| Guernsey Kenosha Pass Mine | Fluorine-Fluorite | Underground | Past Producer | MRDS |
| Guffey District, West | Tungsten, REE | Occurrence | MRDS | |
| Hp 300/ Lt 106 Jaw Crusher | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Hall Placer | Gold | Occurrence | MRDS | |
| Hallack Mine | Beryllium | Underground | Past Producer | MRDS |
| Hallie Prospect | Tungsten | Occurrence | MRDS | |
| Halstead Prospect | Feldspar, Mica | Occurrence | MRDS | |
| Handcart Gulch-Hall Valley Deposit | Iron | Surface | Past Producer | MRDS |
| Happy Thought Mine | Beryllium | Occurrence | MRDS | |
| Harrisburg & Gettysberg | Lead | Underground | Past Producer | MRDS |
| Hartsel Hot Springs | Geothermal | Surface | Unknown | MRDS |
| Hass 1-12 Prospects | Uranium | Past Producer | MRDS | |
| Havighorst | Uranium | Underground | Past Producer | MRDS |
| Hawkeye Mining Co | Lead | Surface | Past Producer | MRDS |
| Hazel Marie Claims | Beryllium | Underground | Past Producer | MRDS |
| Hazel Marie Group | Beryllium | Occurrence | MRDS | |
| Hector Placer Mine | Gold Ore | Surface | Intermittent | MSHA |
| Henry D | Uranium | Underground | Past Producer | MRDS |
| Highland and El Capitan Group | Gold, Silver | Occurrence | MRDS | |
| Hilda May Prospect | Uranium, Thorium | Occurrence | MRDS | |
| Hilda Tunnel | Lead, Zinc | Underground | Past Producer | MRDS |
| Hill Top Claims | Unknown | MRDS | ||
| Hill Top Mine | Lead, Zinc | Occurrence | MRDS | |
| Hill Top Prospect | Uranium | Occurrence | MRDS | |
| Hilltop | Silver | Underground | Past Producer | MRDS |
| Hilltop Mine | Lead, Zinc, Silver | Past Producer | MRDS | |
| Hock Hocking | Zinc, Lead, Gold, Silver | Underground | Past Producer | MRDS |
| Hock Hocking | Gold Ore | Underground | Abandoned | MSHA |
| Holmes Ranch Prospect | Tungsten | Occurrence | MRDS | |
| Horn Property | Uranium | Occurrence | MRDS | |
| Horseshoe Claims | Lead | Surface | Past Producer | MRDS |
| Howbert | Uranium | Surface | Past Producer | MRDS |
| Hungry Five Mine | Lead | Underground | Past Producer | MRDS |
| Imperial | Uranium | Underground | Past Producer | MRDS |
| Iron Hill Placer | Gold | Past Producer | MRDS | |
| Iron Mine | Iron, Manganese, Zinc, Copper | Occurrence | MRDS | |
| Iron Mine | Iron | Underground | Past Producer | MRDS |
| Iron Mountain Claims | Gold, Copper | Occurrence | MRDS | |
| J & S Group | Beryllium | Past Producer | MRDS | |
| Jasper Queen Mine | Tungsten | Past Producer | MRDS | |
| Jefferyes Group | Tungsten | Occurrence | MRDS | |
| Jim Dandy No. 1 | Unknown | MRDS | ||
| Joe Dandy | Uranium | Underground | Past Producer | MRDS |
| John Reed | Uranium | Underground | Past Producer | MRDS |
| Johnson Ranch Prospect | Tungsten | Occurrence | MRDS | |
| Johnson Shaft | Lead | Underground | Past Producer | MRDS |
| Jones Rl Mining Claims | Uranium | Underground | Past Producer | MRDS |
| Kentucky Belle Mine | Gold | Underground | Past Producer | MRDS |
| Key Mine | Uranium | Underground | Past Producer | MRDS |
| Kidnap Shaft | Uranium | Underground | Past Producer | MRDS |
| Kivari #1 | Uranium | Underground | Past Producer | MRDS |
| Kurt Mine | Uranium | Underground | Past Producer | MRDS |
| Kyner | Fluorine-Fluorite | Occurrence | MRDS | |
| Lake George Mine | Fluorine-Fluorite | Underground | Past Producer | MRDS |
| Last Chance | Lead | Underground | Past Producer | MRDS |
| Last Chance | Past Producer | MRDS | ||
| Last Chance Prospect | Uranium | Past Producer | MRDS | |
| Ling | Gold | Underground | Past Producer | MRDS |
| Little Abner Prospect | Tungsten | Occurrence | MRDS | |
| Little French Gulch Placers | Gold | Occurrence | MRDS | |
| Little Joe | Lead | Underground | Past Producer | MRDS |
| Little John Mine | Beryllium | Occurrence | MRDS | |
| Little Nell Mine | Uranium | Underground | Past Producer | MRDS |
| Little Nellie | Uranium | Underground | Past Producer | MRDS |
| Little Newton | Lead | Underground | Past Producer | MRDS |
| Littlejohn J and S | Beryllium, Molybdenum, Copper, Tin, Silver | Occurrence | MRDS | |
| Logansport-Chicago Group | Lead | Underground | Past Producer | MRDS |
| London Extension | Gold | Underground | Plant | MRDS |
| London Mine Group | Gold | Underground | Past Producer | MRDS |
| Lone Jack | Lead | Underground | Past Producer | MRDS |
| Lone Star Claim | Underground | Past Producer | MRDS | |
| Look Tunnel | Lead | Underground | Past Producer | MRDS |
| Lost Park Mine | Lead | Underground | Past Producer | MRDS |
| Lower Baltic | Lead | Underground | Past Producer | MRDS |
| Lucky Boy Prospect | Tungsten | Occurrence | MRDS | |
| Lucky Jim 1,2&3 | Past Producer | MRDS | ||
| Lucky Jim Claims | Uranium | Past Producer | MRDS | |
| Lulu Ibex | Lead | Underground | Past Producer | MRDS |
| Mw Sorter Llc (london Mine) | Gold Ore | Facility | Intermittent | MSHA |
| Mac George Prospect | Uranium | Past Producer | MRDS | |
| Magnolia Mill | Gold | Processing Plant | Past Producer | MRDS |
| Magnolia Mine | Gold | Underground | Past Producer | MRDS |
| Majestic Mine | Lead | Underground | Past Producer | MRDS |
| Martha and Twin Cones Placers | Gold | Occurrence | MRDS | |
| Mary B | Barium-Barite | Underground | Past Producer | MRDS |
| Mary Lee Mine | Beryllium | Past Producer | MRDS | |
| Mary Lee Prospect | Underground | Prospect | MRDS | |
| Maud Mine | Lead | Underground | Past Producer | MRDS |
| Maumee | Uranium | Surface | Past Producer | MRDS |
| McCoy Shaft | Lead | Underground | Past Producer | MRDS |
| McDonald | Uranium | Underground | Past Producer | MRDS |
| McGuire Mine | Feldspar | Past Producer | MRDS | |
| Merrill Pit | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Merrill Pit | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Meyers Ranch | Feldspar, Mica, Beryllium, Niobium (Columbium) | Past Producer | MRDS | |
| Meyers Ranch Mine | Feldspar | Surface | Past Producer | MRDS |
| Michigan Mine | Uranium | Underground | Past Producer | MRDS |
| Middle Tarryall Creek Placer | Gold | Placer | Past Producer | MRDS |
| Mill Gulch Mine | Copper | Past Producer | MRDS | |
| Mill Gulch Mine | Copper | Past Producer | MRDS | |
| Miller Shaft | Lead | Underground | Past Producer | MRDS |
| Miller and Sheldon Placers | Gold | Occurrence | MRDS | |
| Mineral Park Placer | Lead | Underground | Past Producer | MRDS |
| Minerva J Mine | Beryllium | Occurrence | MRDS | |
| Missouri Mine | Lead, Silver, Copper | Underground | Past Producer | MRDS |
| Montgomery Gulch Placer | Gold | Occurrence | MRDS | |
| Moose Mine | Silver, Gold | Past Producer | MRDS | |
| Moose Mine | Silver | Underground | Past Producer | MRDS |
| Morning Star Mine | Gold, Silver | Underground | Past Producer | MRDS |
| Morrison Mine | Lead | Underground | Past Producer | MRDS |
| Mosher Shaft | Uranium | Underground | Past Producer | MRDS |
| Mosquito Mining District | Gold | Underground | Past Producer | MRDS |
| Mud Claims | Uranium | Occurrence | MRDS | |
| Mudsill | Silver | Underground | Past Producer | MRDS |
| Muley Gulch Prospect | Uranium | Occurrence | MRDS | |
| Nash Ranch Prospect | Tungsten | Occurrence | MRDS | |
| New Bonnet Group | Zinc, Sand and Gravel, Construction, Lead | Occurrence | MRDS | |
| New Bonnet Group | Lead | Underground | Past Producer | MRDS |
| New York | Silver | Underground | Past Producer | MRDS |
| Nix Group Prospect | Tungsten | Occurrence | MRDS | |
| North London Mill | Gold | Processing Plant | Past Producer | MRDS |
| North London Mine | Gold | Underground | Occurrence | MRDS |
| North Tarryall Ck. Magnetite | Iron | Occurrence | MRDS | |
| North Tarryall Ck. Placers | Gold | Occurrence | MRDS | |
| North Terryall Creek Placers | Gold | Occurrence | MRDS | |
| Oliver Twist Tunnel | Gold | Underground | Past Producer | MRDS |
| Ophir | Uranium | Underground | Past Producer | MRDS |
| Oro Grande Group | Lead, Zinc | Occurrence | MRDS | |
| Oro Grande Group | Lead | Underground | Past Producer | MRDS |
| Orphan Boy Mine | Lead, Silver, Gold, Copper, Zinc | Underground | Past Producer | MRDS |
| Orphan Boy Placer | Gold | Occurrence | MRDS | |
| Otis Shaft | Lead | Underground | Past Producer | MRDS |
| Ovens #1,#2 | Uranium | Underground | Past Producer | MRDS |
| Oxide Mine | Iron | Underground | Past Producer | MRDS |
| Paris Mill | Gold | Processing Plant | Past Producer | MRDS |
| Paris Mine | Gold | Underground | Past Producer | MRDS |
| Park County Claims | Lead | Surface | Past Producer | MRDS |
| Parker Mine | Fluorine-Fluorite | Occurrence | MRDS | |
| Parnell | Uranium | Surface | Past Producer | MRDS |
| Pawnee | Uranium | Underground | Past Producer | MRDS |
| Peabody Placer | Gold | Occurrence | MRDS | |
| Pedro No. 1 and No. 2 Prospect | Tungsten | Occurrence | MRDS | |
| Peerless Mine | Lead, Zinc | Occurrence | MRDS | |
| Peerless Mine | Silver | Underground | Past Producer | MRDS |
| Pennsylvania Mountain Placers | Gold | Past Producer | MRDS | |
| Pennsylvania Placer | Gold | Surface | Occurrence | MRDS |
| Pennsylvania Tunnel | Gold | Underground | Past Producer | MRDS |
| Platte River Placers | Uranium | Placer | Past Producer | MRDS |
| Poor Man's Gulch Placer | Gold | Occurrence | MRDS | |
| Purgatory Gulch Placers | Gold | Occurrence | MRDS | |
| Quarry | Uranium | Surface | Past Producer | MRDS |
| Rainbow King Mine | Lead | Underground | Past Producer | MRDS |
| Red Cross | Lead | Underground | Past Producer | MRDS |
| Redskin Claims | Uranium | Occurrence | MRDS | |
| Redskin Claims | Underground | Past Producer | MRDS | |
| Redskin Mines | Uranium | Past Producer | MRDS | |
| Redskin Mines | Surface | Past Producer | MRDS | |
| Revenue Mine | Uranium | Underground | Past Producer | MRDS |
| Rhodes Warm Springs | Geothermal | Surface | Unknown | MRDS |
| Riche Shaft | Uranium | Underground | Past Producer | MRDS |
| Roadside Mine | Antimony | Surface | Past Producer | MRDS |
| Rob Roy Shaft | Lead | Underground | Past Producer | MRDS |
| Rose Dawn Mine | Feldspar, Mica | Past Producer | MRDS | |
| Rothchild Mine | Lead | Underground | Past Producer | MRDS |
| Round Mountain Claims | Tungsten | Surface | Past Producer | MRDS |
| Round Mountain Group | Tungsten | Past Producer | MRDS | |
| Ruble Claims | Beryllium | Underground | Past Producer | MRDS |
| Ruby | Lead | Underground | Past Producer | MRDS |
| Russia Mine | Silver | Underground | Past Producer | MRDS |
| Sacremento | Gold | Underground | Past Producer | MRDS |
| Sanborne Sand and Gravel | Gold Ore | Surface | Abandoned | MSHA |
| Sara Rose Mine | Gemstones | Underground | Abandoned | MSHA |
| Scheelite No. 1 and No. 2 Prospects | Tungsten | Occurrence | MRDS | |
| School Section B&g Claim | Tungsten | Surface | Past Producer | MRDS |
| School Section Prospect | Tungsten | Occurrence | MRDS | |
| Security Mine | Lead | Underground | Past Producer | MRDS |
| Shamrock-Irish Group | Underground | Past Producer | MRDS | |
| Shamrock-Irish Prospect | Uranium | Occurrence | MRDS | |
| Shelby - Johnson Mines | Zinc, Lead | Occurrence | MRDS | |
| Shelby Group | Lead | Underground | Past Producer | MRDS |
| Sherwood | Silver | Underground | Past Producer | MRDS |
| Shirley May Mine | Surface-Underground | Past Producer | MRDS | |
| Silver Star | Uranium | Underground | Past Producer | MRDS |
| Silver State Mill | Gold, Silver, Lead | Processing Plant | Past Producer | MRDS |
| Silverheels Mine | Lead | Underground | Past Producer | MRDS |
| Sitting Bull | Uranium | Underground | Past Producer | MRDS |
| Skinney Claim | Tungsten | Occurrence | MRDS | |
| Smith Tunnel | Lead | Underground | Past Producer | MRDS |
| Snowstorm | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| South End Shaft | Uranium | Underground | Past Producer | MRDS |
| South Park Mining Co | Zeolites | Underground | Past Producer | MRDS |
| South Platte Gulch | Tungsten | Occurrence | MRDS | |
| South Platte River Placer | Gold | Occurrence | MRDS | |
| Sovenir | Uranium | Underground | Past Producer | MRDS |
| Spar Mine | Uranium | Underground | Past Producer | MRDS |
| Spinney Mtn Mine | Vermiculite | Underground | Past Producer | MRDS |
| Spinney Mtn. Deposit | Vermiculite | Occurrence | MRDS | |
| Ss Tunnel | Uranium | Underground | Past Producer | MRDS |
| St. Joe Group Prospect | Tungsten | Occurrence | MRDS | |
| Star Girl Mine | Feldspar, Mica | Surface | Past Producer | MRDS |
| Stoll Placer | Gold | Occurrence | MRDS | |
| Sweet Home Mine | Silver, Gemstone | Underground | Past Producer | MRDS |
| Tappan Mtn Prospect Pit | Underground | Prospect | MRDS | |
| Tarryall Creek Mine | Garnet | Underground | Past Producer | MRDS |
| Tarryall Springs District | Tungsten | Past Producer | MRDS | |
| Tedco Claims | Uranium | Occurrence | MRDS | |
| Tedco Claims | Surface | Prospect | MRDS | |
| Teller Pegmatite | Fluorine-Fluorite | Underground | Past Producer | MRDS |
| Teller Pegmatite | Feldspar | Surface | Past Producer | MRDS |
| Tennessee Mine | Beryllium | Occurrence | MRDS | |
| Topaz Mountain Gem Mine | Gemstones | Surface | Intermittent | MSHA |
| Townsend Ranch Prospect | Tungsten | Occurrence | MRDS | |
| Troy | Uranium | Underground | Past Producer | MRDS |
| Two Bit Claims | Uranium | Occurrence | MRDS | |
| Two Bit Claims | Unknown | MRDS | ||
| Unidentified Scheelite Prospect | Tungsten | Occurrence | MRDS | |
| Unidentified Scheelite Prospect | Tungsten | Occurrence | MRDS | |
| Unidentified Scheelite Prospect | Tungsten | Occurrence | MRDS | |
| Unidentified Scheelite Prospect | Tungsten | Occurrence | MRDS | |
| Unknown | Sand and Gravel, Construction | Occurrence | MRDS | |
| Unknown | Sand and Gravel, Construction | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Fire Clay (Refractory) | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Sand and Gravel, Construction | Occurrence | MRDS | |
| Unknown | Beryllium | Occurrence | MRDS | |
| Unknown | Sand and Gravel, Construction | Occurrence | MRDS | |
| Unknown | Sand and Gravel, Construction | Occurrence | MRDS | |
| Unknown | Zinc, Lead | Occurrence | MRDS | |
| Unknown | Sand and Gravel, Construction | Occurrence | MRDS | |
| Unknown | Sand and Gravel, Construction | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Fluorine-Fluorite | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Sand and Gravel, Construction | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Beryllium | Occurrence | MRDS | |
| Unknown | Beryllium | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Sand and Gravel, Construction | Occurrence | MRDS | |
| Unknown | Barium-Barite | Occurrence | MRDS | |
| Unknown | Sand and Gravel, Construction | Occurrence | MRDS | |
| Unknown | Gold | Occurrence | MRDS | |
| Unknown | Lead | Underground | Past Producer | MRDS |
| Unknown | Iron | Underground | Past Producer | MRDS |
| Unknown | Uranium | Underground | Past Producer | MRDS |
| Unknown | Iron | Underground | Past Producer | MRDS |
| Unknown | Lead | Underground | Past Producer | MRDS |
| Unknown | Lead | Underground | Past Producer | MRDS |
| Unknown | Uranium | Underground | Past Producer | MRDS |
| Unknown | Uranium | Underground | Past Producer | MRDS |
| Unknown | Uranium | Underground | Past Producer | MRDS |
| Unknown | Uranium | Surface | Past Producer | MRDS |
| Unknown | Lead | Underground | Past Producer | MRDS |
| Unknown | Uranium | Underground | Past Producer | MRDS |
| Unknown | Uranium | Underground | Past Producer | MRDS |
| Unknown | Uranium | Underground | Past Producer | MRDS |
| Unknown | Lead | Underground | Past Producer | MRDS |
| Unknown | Uranium | Surface | Past Producer | MRDS |
| Unknown | Uranium | Underground | Past Producer | MRDS |
| Unknown | Feldspar | Underground | Past Producer | MRDS |
| Unnamed Uranium Occurrence | Uranium | Occurrence | MRDS | |
| Unnamed Uranium Occurrence | Uranium | Occurrence | MRDS | |
| Upper Baltic Shaft | Uranium | Underground | Past Producer | MRDS |
| Upper Four Mile Ck. Placers | Gold | Occurrence | MRDS | |
| Upper Ovens Tunnel | Uranium | Underground | Past Producer | MRDS |
| Ute Mine | Zinc, Iron | Occurrence | MRDS | |
| Venture | Uranium | Underground | Past Producer | MRDS |
| Venus | Uranium | Underground | Past Producer | MRDS |
| Victory Prospect | Tungsten | Past Producer | MRDS | |
| Vienna | Uranium | Underground | Past Producer | MRDS |
| Walker & Buffalo Head Mine | Lead | Underground | Past Producer | MRDS |
| Watseka | Uranium | Underground | Past Producer | MRDS |
| Weber Shaft | Lead | Underground | Past Producer | MRDS |
| West Ranch Deposit | Tungsten | Occurrence | MRDS | |
| West Tungsten Prospect | Tungsten | Occurrence | MRDS | |
| Whale Mine | Silver, Lead | Underground | Past Producer | MRDS |
| Wheel of Fortune | Underground | Unknown | MRDS | |
| Wheel of Fortune Claim | Uranium | Occurrence | MRDS | |
| Wheeler Group | Uranium | Underground | Past Producer | MRDS |
| White Swan | Molybdenum | Occurrence | MRDS | |
| Wilfley Group | Tungsten, Gold | Occurrence | MRDS | |
| Willow Claims | Uranium | Occurrence | MRDS | |
| Wilson Placer | Gold | Occurrence | MRDS | |
| Wyandotte Mine | Gold | Underground | Past Producer | MRDS |