Abandoned Mines in Colorado

9,100Abandoned & Historical

Abandoned Mining in Colorado

Federal databases record 9,100 abandoned, sealed, and historically closed mine locations in Colorado. These include mines officially abandoned under MSHA oversight and past producers documented in the USGS Mineral Resources Data System. Abandoned mines are a legacy of centuries of mineral extraction and can pose ongoing environmental and safety concerns for nearby communities.

Safety Warning: Abandoned mines are extremely dangerous. Hazards include cave-ins, toxic gases, flooded shafts, unstable ground, and hidden vertical drops. Never enter an abandoned mine. Many are on private property. If you discover an unsecured abandoned mine, report it to your state mining agency.

Top Counties

County	Abandoned/Historical
Clear Creek County	1,098
Montrose County	845
Boulder County	661
San Miguel County	552
Teller County	507
Lake County	377
Saguache County	310
Chaffee County	307
San Juan County	295
La Plata County	291
Gilpin County	290
Park County	261
Gunnison County	245
Ouray County	242
Fremont County	217
Pitkin County	217
Summit County	200
Mesa County	168
Dolores County	155
Custer County	137

Abandoned Mine Sites

Mine	County	Commodity	Status	Source
Ansley / 9 Pit	Park	Construction Sand and Gravel	Abandoned	MSHA
Metso1213s	El Paso	Construction Sand and Gravel	Abandoned	MSHA
#205-Mvp450	La Plata	Construction Sand and Gravel	Abandoned	MSHA
(Facility) Cumberland Mill	La Plata	Gold	Past Producer	MRDS
115 Dp	Weld	Construction Sand and Gravel	Abandoned	MSHA
117 Dp	Weld	Construction Sand and Gravel	Abandoned	MSHA
117 Wp	Weld	Construction Sand and Gravel	Abandoned	MSHA
120 Dp	Weld	Construction Sand and Gravel	Abandoned	MSHA
1905 Mine	Boulder	Tungsten	Past Producer	MRDS
2100 Pts	Weld	Construction Sand and Gravel	Abandoned	MSHA
394357	Clear Creek		Past Producer	MRDS
3dw Mines	Jefferson	Fire Clay	Abandoned	MSHA
4 Corners Plant #3	La Plata	Construction Sand and Gravel	Abandoned	MSHA
45-90 Mine	Montrose	Uranium	Past Producer	MRDS
4th National Bank Mine	Montrose		Past Producer	MRDS
50-3-13 Pioneer 3042 Jaw Crusher	Lake	Construction Sand and Gravel	Abandoned	MSHA
5th National Bank Mine	Montrose		Past Producer	MRDS
6203	Moffat	Construction Sand and Gravel	Abandoned	MSHA
715 Drift	Montrose	Uranium	Past Producer	MRDS
A & C Prospect	Park	Beryllium	Past Producer	MRDS
A & H	Montrose	Uranium	Past Producer	MRDS
A E C Uranium Mill	Mesa	Uranium	Past Producer	MRDS
A H Canfield Mine	San Miguel	Uranium	Past Producer	MRDS
A M & S Group	Pitkin	Silver	Past Producer	MRDS
A M Mine	Lake		Past Producer	MRDS
A M T & D Co Tunnel	Pitkin	Silver	Past Producer	MRDS
A V Mine	Lake		Past Producer	MRDS
A Tunnel	Clear Creek	Gold	Past Producer	MRDS
A Tunnel	Clear Creek	Gold	Past Producer	MRDS
A-J Tunnel	Pitkin	Lead	Past Producer	MRDS
A. B. G. Mine	Dolores	Silver, Lead, Zinc	Past Producer	MRDS
A.c.a.	Clear Creek	Gold	Past Producer	MRDS
A.e.c. Block #6	Montrose	Uranium	Past Producer	MRDS
A.p.t. Tunnel	Clear Creek	Gold	Past Producer	MRDS
A1	San Miguel	Gold	Past Producer	MRDS
Aec Lease Tract C-Bl-23	Montrose		Past Producer	MRDS
Aec Lease Tract C-Bl-23a	Montrose		Past Producer	MRDS
Aec Lease Tract C-Cm-24	Montrose		Past Producer	MRDS
Aec Lease Tract C-G-27	Mesa		Past Producer	MRDS
Aec Lease Tract C-G-27a	Mesa		Past Producer	MRDS
Alma Plant	Park	Construction Sand and Gravel	Abandoned	MSHA
Alpine Pit	Summit	Construction Sand and Gravel	Abandoned	MSHA
Antero Gravel Pit	Huerfano	Construction Sand and Gravel	Abandoned	MSHA
Arikaree/limon Pit	Lincoln	Construction Sand and Gravel	Abandoned	MSHA
Asci Cr 22	Weld	Construction Sand and Gravel	Abandoned	MSHA
Asci Cr 23	Weld	Construction Sand and Gravel	Abandoned	MSHA
Aaberlite Mines	Gunnison	Vermiculite	Past Producer	MRDS
Abandon Mine	Larimer	Beryllium	Past Producer	MRDS
Abbit	Custer	Perlite	Past Producer	MRDS
Abe Lincoln	Teller	Gold	Past Producer	MRDS
Aberdeen Quarry	Gunnison	Stone, Dimension	Past Producer	MRDS
Abg	Dolores	Silver	Past Producer	MRDS
Acapulca	San Juan	Bismuth	Past Producer	MRDS
Accidental	Clear Creek	Gold	Past Producer	MRDS
Accord	Clear Creek	Gold	Past Producer	MRDS
Ace of Diamonds Shaft	Clear Creek	Gold	Past Producer	MRDS
Acme Placer	Routt	Gold	Past Producer	MRDS
Acme Property	Fremont	Copper	Past Producer	MRDS
Ada	Clear Creek	Gold	Past Producer	MRDS
Ada Bell No 1	Teller	Gold	Past Producer	MRDS
Ada Group of Mines	Gilpin	Gold	Past Producer	MRDS
Adak Mine	Montrose		Past Producer	MRDS
Adams Aggregates Inc	Douglas	Stone, Crushed/Broken	Past Producer	MRDS
Adams County Pit	Adams	Sand and Gravel, Construction	Past Producer	MRDS
Adams County Pit	Adams	Sand and Gravel, Construction	Past Producer	MRDS
Adams Lode - Bismark	San Juan	Tungsten	Past Producer	MRDS
Adams North Pit	Adams	Sand and Gravel, Construction	Past Producer	MRDS
Adams Shaft	Lake	Gold	Past Producer	MRDS
Adams Transit Pit	Larimer	Sand and Gravel, Construction	Past Producer	MRDS
Addition	Clear Creek	Gold	Past Producer	MRDS
Addule Shaft	Clear Creek	Gold	Past Producer	MRDS
Adelbert Lode	Gilpin	Gold	Past Producer	MRDS
Adelia	San Juan	Lead	Past Producer	MRDS
Adelphin	San Juan	Gold	Past Producer	MRDS
Adit	Clear Creek	Gold	Past Producer	MRDS
Adobe Longhorn Mine	Gunnison	Gold Ore	Abandoned	MSHA
Adrian Shaft	Summit	Gold	Past Producer	MRDS
Aduddell	Gilpin		Past Producer	MRDS
Aec Lease Tract C-Lp-22	Montrose		Past Producer	MRDS
Aec Lease Tract C-Sr-10	San Miguel		Past Producer	MRDS
Aec Lease Tract C-Sr-11	San Miguel		Past Producer	MRDS
Aec Lease Tract C-Sr-12	San Miguel		Past Producer	MRDS
Aec Lease Tract C-Sr-13	San Miguel		Past Producer	MRDS
Aec Lease Tract C-Sr-14	San Miguel		Past Producer	MRDS
Aec Lease Tract C-Sr-14a	San Miguel		Past Producer	MRDS
Aec Lease Tract C-Sr-15	San Miguel		Past Producer	MRDS
Aec Lease Tract C-Sr-16	San Miguel		Past Producer	MRDS
Aec Lease Tract C-Sr-16a	San Miguel		Past Producer	MRDS
Aec Lease Tract Unit C-Am-19	Montrose		Past Producer	MRDS
Aec Lease Tract Unit C-Am-19a	Montrose		Past Producer	MRDS
Aec Lease Tract Unit C-Cm-25	Montrose		Past Producer	MRDS
Aec Lease Tract Unit C-G-26	Mesa		Past Producer	MRDS
Aec Lease Tract Unit C-G-26a	Mesa		Past Producer	MRDS
Aec Lease Tract Unit C-Jd-5	Montrose		Past Producer	MRDS
Aec Lease Tract Unit C-Jd-5a	Montrose		Past Producer	MRDS
Aec Lease Tract Unit C-Jd-8	Montrose		Past Producer	MRDS
Aec Lease Tract Unit C-Lp-21	Montrose		Past Producer	MRDS
Aetna	Clear Creek	Gold	Past Producer	MRDS
Aetna	La Plata	Silver	Past Producer	MRDS
Aetna	Park	Uranium	Past Producer	MRDS

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