Abandoned mines in Montrose County, Colorado

1. Mine openings

   shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
   1,036 49.2%
2. Prospect pits and trenches

   shallow exploration diggings that never became a mine
   807 38.3%
3. Mines and surface workings

   labelled mines, open pits, strip mines, placer and hydraulic workings
   89 4.2%
4. Quarries, gravel and borrow pits

   construction-material and industrial-mineral extraction
   100 4.7%
5. Dumps, tailings, spoil and gob

   what mining left above ground
   70 3.3%
6. Other reclamation problems

   highwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
   5 0.2%

A name is the label printed beside the symbol on the map. "First mapped" is the earliest topographic edition that shows the symbol, which bounds the feature's age from above; it is not the date it was worked. Unnamed features (most prospect pits, adits and shafts carry no label) are in the counts above but not this list.

Problem types carry OSMRE's priority prefix: P1 and P2 are threats to health, safety and property, P3 is environmental. A problem area is a cluster of problems reclaimed as one project; several rows can share one location.

1. 1st National Bank

   Underground metal/non-metal · Union Carbide Corp · MSHA ID 0503226
   Abandoned 1979-02-22
2. All Stars

   Underground metal/non-metal · Nelson Mining Inc · MSHA ID 0502512
   Abandoned 1990-03-06
3. Anna May

   Underground metal/non-metal · Nuvemco LLC · MSHA ID 0503053
   Abandoned 1981-10-14
4. April Mine

   Underground metal/non-metal · Earl Bell · MSHA ID 0503166
   Abandoned 1980-03-24
5. Ayers

   Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503405
   Abandoned 1979-07-31
6. Baby Fawn

   Underground metal/non-metal · Chiles Mining & Drilling · MSHA ID 0503750
   Abandoned 1982-11-04
7. Bagger

   Underground metal/non-metal · Union Carbide Corp · MSHA ID 0502367
   Abandoned 1979-08-07
8. Bellgardt

   Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503370
   Abandoned 1980-10-14
9. Betty Jean

   Underground metal/non-metal · Sage & Sage Mining · MSHA ID 0503892
   Abandoned 1984-07-12
10. Blackburn Mine/Monogram Jo Dandy

    Underground metal/non-metal · Nuvemco LLC · MSHA ID 0501817
    Abandoned 1979-08-07
11. Blondie

    Underground metal/non-metal · Urralburu Mining Company · MSHA ID 0503115
    Abandoned 1979-07-16
12. Blue Streak Mine

    Underground metal/non-metal · Nuvemco LLC · MSHA ID 0503534
    Abandoned 2009-04-27
13. Bob Cory Pit

    Surface metal/non-metal · Musick Inc · MSHA ID 0503573
    Abandoned 1983-01-31
14. Buckhorn Mine

    Underground metal/non-metal · Oliver & Kinderknect · MSHA ID 0503310
    Abandoned 1979-04-26
15. Bull Durham

    Underground metal/non-metal · Michael R Holland · MSHA ID 0503781
    Abandoned 1990-12-07
16. Burbank #1

    Surface metal/non-metal · Brown & Root Inc · MSHA ID 0503531
    Abandoned 1982-09-16
17. Buying Station

    Facility metal/non-metal · Minerals Recovery Corp · MSHA ID 0502995
    Abandoned 1982-10-14
18. C Bl 23

    Underground metal/non-metal · Starks Mining · MSHA ID 0502963
    Abandoned 1980-07-16
19. C Jd 7 Pit

    Surface metal/non-metal · Brown & Root Inc · MSHA ID 0503535
    Abandoned 1982-02-11
20. C Lp 22

    Underground metal/non-metal · Mineral Reserves Group Inc · MSHA ID 0503011
    Abandoned 1982-06-22
21. C-Bl-23b

    Underground metal/non-metal · Pioneer Uravan Inc · MSHA ID 0503465
    Abandoned 1982-11-19
22. C-CM-25

    Underground metal/non-metal · Cotter Corp · MSHA ID 0502338
    Abandoned 1984-11-14
23. C-JD-6

    Underground metal/non-metal · Highbury Resources Inc. · MSHA ID 0502912
    Abandoned 2011-10-18
24. C-JD-7

    Underground metal/non-metal · Highbury Resources Inc. · MSHA ID 0503031
    Abandoned 1985-07-25
25. C-JD-8

    Underground metal/non-metal · Highbury Resources Inc. · MSHA ID 0504104
    Abandoned 2011-10-18
26. C-JD-9

    Underground metal/non-metal · Highbury Resources Inc. · MSHA ID 0503066
    Abandoned 2007-03-12
27. C-Jd5

    Underground metal/non-metal · Gold Eagle Mining Inc · MSHA ID 0502959
    Abandoned 1990-10-16
28. C-LP-21

    Underground metal/non-metal · Cotter Corp · MSHA ID 0502921
    Abandoned 1984-11-06
29. C-Lp-22a

    Underground metal/non-metal · Cotter Corp · MSHA ID 0503195
    Abandoned 1984-11-14
30. C-SM-18

    Underground metal/non-metal · Highbury Resources Inc · MSHA ID 0503152
    Abandoned 2011-10-18
31. CADGENE PIT

    Surface metal/non-metal · Maverick Sand & Gravel · MSHA ID 0504544
    Abandoned 2000-06-19
32. Canyon 7 Mine

    Underground metal/non-metal · Cooper Mining · MSHA ID 0503210
    Abandoned 1980-03-24
33. Canyon Claims #8

    Underground metal/non-metal · Hatfield Mining Inc · MSHA ID 0503853
    Abandoned 1983-10-26
34. Carpenter Flats

    Underground metal/non-metal · Minerals Recovery Corp · MSHA ID 0504115
    Abandoned 1986-04-01
35. Cashin Mine

    Underground metal/non-metal · New Star Corp · MSHA ID 0503474
    Abandoned 1982-10-25
36. CENTENNIAL

    Underground metal/non-metal · Colorado Minerals Recovery Llc · MSHA ID 0502993
    Abandoned 1999-01-25
37. Coloradian

    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0503004
    Abandoned 1981-06-17
38. Crest

    Underground metal/non-metal · C & D Exploration Inc · MSHA ID 0503218
    Abandoned 1981-06-17
39. Crusher #1

    Surface metal/non-metal · Western Gravel Inc · MSHA ID 0504802
    Abandoned 2009-03-24
40. Donald L

    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0502996
    Abandoned 1982-09-17
41. Duggan Adit

    Underground metal/non-metal · Mendisco Mining · MSHA ID 0500891
    Abandoned 1990-02-07
42. Durita-Naturita Operations

    Surface metal/non-metal · Durita Development Corp · MSHA ID 0503107
    Abandoned 1980-02-14
43. Echo #2

    Underground metal/non-metal · Switzler Mining Company · MSHA ID 0502964
    Abandoned 1980-09-08
44. Egbert/Zebra

    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0503417
    Abandoned 1981-12-07
45. Equinox

    Underground metal/non-metal · Cleghorn Mining Company · MSHA ID 0503225
    Abandoned 1982-07-20
46. Eula Belle

    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0501740
    Abandoned 1982-09-17
47. Fabtec 45II Cone Screen Plant

    Surface metal/non-metal · Pelino Inc · MSHA ID 0504898
    Abandoned 2019-05-09
48. Fallen Timber Lumber LLc

    Surface metal/non-metal · Fallen Timber Lumber LLc · MSHA ID 0505109
    Abandoned 2019-07-15
49. Farmer Girl

    Underground metal/non-metal · Energy Fuels Resources · MSHA ID 0501149
    Abandoned 1983-07-13
50. Fawn Springs #9

    Underground metal/non-metal · Paradox Associates Ltd · MSHA ID 0501633
    Abandoned 1979-10-26
51. Frontier Sand & Gravel

    Surface metal/non-metal · Frontier Sand & Gravel · MSHA ID 0504331
    Abandoned 1989-01-05
52. Geo

    Underground metal/non-metal · Bob Shumway Mining · MSHA ID 0502383
    Abandoned 1990-06-20
53. Grace

    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0502706
    Abandoned 1982-06-22
54. Grand Crusher Portable

    Surface metal/non-metal · Grand Construction Company · MSHA ID 0504214
    Abandoned 1989-01-09
55. Guadalcanal

    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0503220
    Abandoned 1979-02-22
56. Hamilton Mine

    Surface coal · Honeywood Coal Company · MSHA ID 0504457
    Abandoned 1993-11-03
57. Hangover Mine

    Underground metal/non-metal · Lowell Rockwell · MSHA ID 0503425
    Abandoned 1979-07-16
58. Happy Thought Mine

    Underground metal/non-metal · Nuvemco LLC · MSHA ID 0504926
    Abandoned 2009-04-20
59. Hendrickson No 1 Pit

    Surface metal/non-metal · Brown & Root Construction · MSHA ID 0503544
    Abandoned 1980-11-12
60. High Country Aggregates II

    Surface metal/non-metal · Sky Ute Sand & Gravel, LLC · MSHA ID 0504527
    Abandoned 2010-04-30
61. High Country Aggregates III

    Surface metal/non-metal · Sky Ute Sand & Gravel, LLC · MSHA ID 0504811
    Abandoned 2010-07-12
62. HIGH COUNTRY AGGREGATES INC II

    Surface metal/non-metal · High Country Aggregates Inc · MSHA ID 0504566
    Abandoned 1998-06-22
63. High Country V

    Surface metal/non-metal · Sky Ute Sand & Gravel, LLC · MSHA ID 0504831
    Abandoned 2006-05-02
64. Hoo-6

    Underground metal/non-metal · Chiles Mining & Drilling · MSHA ID 0500922
    Abandoned 1990-10-15
65. J & J Mine-Teapot

    Surface metal/non-metal · Paradox Associates Ltd · MSHA ID 0504389
    Abandoned 1990-04-09
66. J-Bird

    Underground metal/non-metal · Rimrock Exploration & Development Inc. · MSHA ID 0504885
    Abandoned 2013-10-29
67. Jasper

    Surface metal/non-metal · Axiom Mining Company · MSHA ID 0504406
    Abandoned 1991-09-01
68. Jb4

    Underground metal/non-metal · Jones Mining Company · MSHA ID 0503851
    Abandoned 1984-03-21
69. Julians Mine

    Underground metal/non-metal · Taminco Inc · MSHA ID 0503501
    Abandoned 1982-09-09
70. King Solomon

    Underground metal/non-metal · Umetco Minerals Corp · MSHA ID 0502675
    Abandoned 1990-05-24
71. Last Chance

    Underground metal/non-metal · F & F Mendisco Mining Company · MSHA ID 0503052
    Abandoned 1982-05-17
72. Last Chance Mine

    Underground metal/non-metal · Nuvemco LLC · MSHA ID 0504627
    Abandoned 2009-03-23
73. Lazy L

    Underground metal/non-metal · Quadra Mining & Development Company · MSHA ID 0503123
    Abandoned 1980-09-11
74. Little Fawn

    Underground metal/non-metal · C & D Exploration Inc · MSHA ID 0502924
    Abandoned 1979-02-12
75. Long Park 15

    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0502379
    Abandoned 1983-12-14
76. Lp-8

    Underground metal/non-metal · Gary Shumway · MSHA ID 0501726
    Abandoned 1988-08-29
77. Maybe

    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0501657
    Abandoned 1979-03-26
78. Mineral Joe #2

    Underground metal/non-metal · Phil Bunker Mining Company · MSHA ID 0500914
    Abandoned 1984-07-12
79. Monogram #12

    Underground metal/non-metal · Sage & Sage Mining · MSHA ID 0503852
    Abandoned 1983-08-12
80. Monogram Mine

    Underground metal/non-metal · Nuvemco LLC · MSHA ID 0502340
    Abandoned 1982-11-15
81. Monogram Open Pit Mine

    Surface metal/non-metal · Nuvemco LLC · MSHA ID 0504928
    Abandoned 2009-04-20
82. Montrose Concrete Products

    Surface metal/non-metal · Montrose Concrete Products Company · MSHA ID 0501008
    Abandoned 1988-09-15
83. MONTROSE COUNTY CRUSHER

    Surface metal/non-metal · Montrose County Road & Bridge · MSHA ID 0504606
    Abandoned 2000-12-12
84. Mum Mine

    Underground metal/non-metal · Pioneer Uravan Inc · MSHA ID 0502588
    Abandoned 1979-12-04
85. Murietta

    Underground metal/non-metal · Urralburu Mining Company · MSHA ID 0502946
    Abandoned 1985-01-23
86. New Horizon Mine

    Surface coal · Elk Ridge Mining and Reclamation LLC · MSHA ID 0500299
    Abandoned 2019-01-24
87. Nil

    Underground metal/non-metal · B-Mining Company · MSHA ID 0501658
    Abandoned 1990-12-07
88. Nucla Sand & Gravel

    Surface metal/non-metal · Cotter Corp · MSHA ID 0504048
    Abandoned 1987-08-03
89. Old River Mill

    Surface metal/non-metal · Western Earth Movers · MSHA ID 0501589
    Abandoned 1992-08-18
90. Owen Uptain

    Surface metal/non-metal · Owen Uptain · MSHA ID 0504410
    Abandoned 1990-08-22
91. Peanut

    Underground metal/non-metal · Lear Mining · MSHA ID 0502787
    Abandoned 1983-10-03
92. PICKETT CORRAL

    Underground metal/non-metal · Grand Mesa Mining Corp · MSHA ID 0501159
    Abandoned 1998-12-02
93. PINNACLE NO 1 QUARRY

    Surface metal/non-metal · Pinnacle Quarry & Development Company · MSHA ID 0504574
    Abandoned 2000-11-21
94. PIT #1

    Surface metal/non-metal · West End Gravel Company Inc · MSHA ID 0504623
    Abandoned 2005-03-15
95. Portable 1

    Surface metal/non-metal · Western Gravel, Inc. · MSHA ID 0505147
    Abandoned 2022-08-11
96. PORTABLE CRUSHER

    Surface metal/non-metal · Farmer's Construction Company Inc · MSHA ID 0502504
    Abandoned 2002-08-22
97. PORTABLE CRUSHER

    Surface metal/non-metal · Black Canyon Aggregate Inc · MSHA ID 0503450
    Abandoned 2019-01-01
98. PORTABLE CRUSHER

    Surface metal/non-metal · San Juan Construction · MSHA ID 0504692
    Abandoned 2002-02-28
99. PORTABLE PLANT - ANGIE PIT

    Surface metal/non-metal · Williams Construction · MSHA ID 0502505
    Abandoned 2019-12-13
100. PORTABLE SCREENER

     Surface metal/non-metal · Montrose County · MSHA ID 0504211
     Abandoned 2005-01-08
101. Prayer #9

     Underground metal/non-metal · Union Carbide Corp · MSHA ID 0503779
     Abandoned 1983-12-14
102. Prince Albert

     Underground metal/non-metal · Rimrock Exploration and Development, Inc. · MSHA ID 0504913
     Abandoned 2010-02-01
103. Radium Hill 10

     Underground metal/non-metal · Union Carbide Corp · MSHA ID 0500924
     Abandoned 1978-05-04
104. Rattle Snake

     Underground metal/non-metal · Union Carbide Corp · MSHA ID 0501768
     Abandoned 1979-08-27
105. Red Bird No 19

     Underground metal/non-metal · Frontier Excavation · MSHA ID 0503456
     Abandoned 1981-06-17
106. Red Bird Or Red Bird #1

     Underground metal/non-metal · C & D Exploration Inc · MSHA ID 0501806
     Abandoned 1982-04-29
107. Rex

     Underground metal/non-metal · Cleghorn Mining Company · MSHA ID 0502013
     Abandoned 1984-03-23
108. Rim Rock Blue #2

     Underground metal/non-metal · Union Carbide Corp · MSHA ID 0502165
     Abandoned 1981-12-23
109. RIM ROCK BLUES

     Underground metal/non-metal · Grand Mesa Mining Corp · MSHA ID 0504611
     Abandoned 1998-07-30
110. Rimrock #5

     Underground metal/non-metal · Michael R Holland · MSHA ID 0503454
     Abandoned 1981-06-17
111. Rimrock Blues #3

     Underground metal/non-metal · Union Carbide Corp · MSHA ID 0503216
     Abandoned 1979-08-21
112. Rising Sun

     Underground metal/non-metal · P S Mining · MSHA ID 0504394
     Abandoned 1990-11-19
113. Rye No 8

     Underground metal/non-metal · Bennett Mining Company · MSHA ID 0503057
     Abandoned 1981-06-17
114. September Morn

     Underground metal/non-metal · Union Carbide Corp · MSHA ID 0501278
     Abandoned 1983-12-14
115. September Morn

     Underground metal/non-metal · Mendisco Mining · MSHA ID 0501780
     Abandoned 1991-01-10
116. Showboat Mine

     Underground metal/non-metal · Greagor & Switzler Mining Company · MSHA ID 0503117
     Abandoned 1981-06-17
117. Silver Dollar #1

     Underground metal/non-metal · Lyssa Mining Co · MSHA ID 0503008
     Abandoned 1981-06-17
118. Sinbad

     Surface metal/non-metal · Abana Corp · MSHA ID 0503999
     Abandoned 1987-01-22
119. SOUTHGLEN

     Surface metal/non-metal · Western Gravel Inc · MSHA ID 0501027
     Abandoned 1997-02-07
120. St Patrick #7 Or St Patrick

     Underground metal/non-metal · C W Bunker & Company · MSHA ID 0501179
     Abandoned 1980-11-25
121. Starlite No 7

     Underground metal/non-metal · Duel Mining Company · MSHA ID 0503118
     Abandoned 1980-03-18
122. Sunbeam

     Underground metal/non-metal · Blue Rock Energy Corp · MSHA ID 0501065
     Abandoned 1988-12-02
123. Sunrise No 5

     Underground metal/non-metal · Summit Canyon Resources Inc · MSHA ID 0503424
     Abandoned 1979-09-13
124. Telluride

     Underground metal/non-metal · Taminco Inc · MSHA ID 0501715
     Abandoned 1981-12-23
125. The Gleason Pit

     Surface metal/non-metal · J E Sutherland Construction, LLC · MSHA ID 0504539
     Abandoned 2012-05-08
126. Thoe Agg Portable #1

     Surface metal/non-metal · Thoe Aggregates · MSHA ID 0504005
     Abandoned 1989-08-02
127. Thornton

     Underground metal/non-metal · Rajah Ventures Ltd · MSHA ID 0501311
     Abandoned 1983-06-30
128. Thunderbolt

     Underground metal/non-metal · Union Carbide Corp · MSHA ID 0503240
     Abandoned 1979-08-07
129. Toltec & Granger Mill

     Facility metal/non-metal · Toltec & Granger Mining Corp · MSHA ID 0504357
     Abandoned 1988-08-04
130. Tramp

     Underground metal/non-metal · Blue Rock Energy Corp · MSHA ID 0502563
     Abandoned 1977-12-08
131. Twilight No 1

     Underground metal/non-metal · U S Bureau Of Mines · MSHA ID 0501714
     Abandoned 1979-05-23
132. Unit No 477

     Surface metal/non-metal · Montrose County · MSHA ID 0502914
     Abandoned 1983-02-22
133. Ura Mine

     Underground metal/non-metal · Reams Construction Company · MSHA ID 0501653
     Abandoned 1989-04-11
134. Uranus Mine

     Underground metal/non-metal · Nuvemco LLC · MSHA ID 0504925
     Abandoned 2009-04-20
135. Uravan Remedial Action Project

     Surface metal/non-metal · Umetco Minerals Corp · MSHA ID 0501785
     Abandoned 1994-02-02
136. Van #4

     Underground metal/non-metal · Chiles Mining & Drilling · MSHA ID 0504371
     Abandoned 1990-04-09
137. Weimer One Gravel Pit

     Surface metal/non-metal · West End Gravel Company Inc · MSHA ID 0504579
     Abandoned 2006-04-13
138. Western Gravel Incorporated

     Surface metal/non-metal · Western Gravel Inc · MSHA ID 0504107
     Abandoned 1994-08-01
139. WILD STEER

     Surface metal/non-metal · Maverick Sand & Gravel · MSHA ID 0504642
     Abandoned 2002-05-01
140. WILLIAMS GRAVEL PIT

     Surface metal/non-metal · Hank Williams Inc. · MSHA ID 0501988
     Abandoned 2007-10-01
141. Woods Placer

     Surface metal/non-metal · W A Weaver · MSHA ID 0502389
     Abandoned 1978-09-08
142. Yellowbird No 1

     Underground metal/non-metal · C & D Exploration Inc · MSHA ID 0503137
     Abandoned 1979-02-09

Status and date are as reported to MSHA by the operator. Each mine's own page carries its accident, citation and inspection record.

• San Juan County 3,913
• Lake County 3,672
• Gunnison County 2,703
• Saguache County 2,319
• San Miguel County 2,242
• Gilpin County 2,148
• Custer County 2,062
• Clear Creek County 1,996
• Park County 1,624
• Chaffee County 1,486
• Summit County 1,449
• Boulder County 1,083

1. USGS, Consolidated Prospect- and Mine-Related Features from 7.5- and 15-Minute Topographic Quadrangle Maps of the United States (USMIN)
   597,612 point and area features digitized from about 106,350 historical topographic maps published 1886–2006; public domain (CC0). A feature is a map symbol, not a field-verified site, and the map does not say whether it was still worked.
2. USGS Fact Sheet 2025–3003, The Abandoned Mine Inventory of the United States
   States that as of 2025 there is no comprehensive national inventory of abandoned mine features, and that the detailed national database now being built will not be published.
3. OSMRE, Abandoned Mine Land Inventory System (e-AMLIS), public Problems layer
   One row per abandoned mine land problem in a problem area, with its type, funding program and reclamation status; mostly coal mined before the 1977 Surface Mining Control and Reclamation Act. Coordinates are the problem area's.
4. MSHA, Mines dataset (Mine Data Retrieval System)
   Every mine registered with MSHA since the 1970s; a mine reads Abandoned or Abandoned and Sealed when its operator reported that status. Refreshed weekly.
5. US Census Bureau, 2023 cartographic county boundaries (1:500,000)
   Each feature's county is assigned by its coordinates against these boundaries, not copied from the source file.
6. GAO-20-238, Abandoned Hardrock Mines (March 2020)
   Federal agencies had identified at least 140,000 abandoned hardrock mine features on federal land and estimated more than 390,000 more not yet captured in their databases.
7. Abandoned Hardrock Mine Reclamation (AHMR) Program, US Department of the Interior
   The program the USGS inventory is compiled for. Its appropriations and the 674,000 field-confirmed feature count on this page were provided by the program manager, Office of Environmental Policy and Compliance, and are cited with permission (2026-09-08).
8. IMCC-NAAMLP Hardrock AML Report
   Page 48 carries the two figures this page leans on: USGS estimates 633,181 of the 725,690 mine features it recorded from historic topographic maps, 87 percent, are hardrock; and state and federal agencies have submitted more than 724,000 AML features to the national database being built, already more than the historic maps hold. Year-by-year AHMR funding is on page 35.