Abandoned mines in El Paso County, Colorado

1. Mine openings

   shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
   41 12.0%
2. Prospect pits and trenches

   shallow exploration diggings that never became a mine
   20 5.9%
3. Mines and surface workings

   labelled mines, open pits, strip mines, placer and hydraulic workings
   36 10.6%
4. Quarries, gravel and borrow pits

   construction-material and industrial-mineral extraction
   217 63.6%
5. Dumps, tailings, spoil and gob

   what mining left above ground
   3 0.9%
6. Other reclamation problems

   highwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
   24 7.0%

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. "B" STREET PROJECT

   Surface metal/non-metal · South Academy Station Llc · MSHA ID 0504664
   Abandoned 2000-11-27
2. 26th Street Pit & 3170 Century Stre

   Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0502834
   Abandoned 1979-07-23
3. Alford Pit

   Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0502973
   Abandoned 1979-07-23
4. Apache

   Surface metal/non-metal · Robinson Brick Company · MSHA ID 0501851
   Abandoned 1991-04-01
5. Asper Pit

   Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503125
   Abandoned 1979-07-23
6. Bacon Mine

   Surface coal · Nurseries Inc Of Wyoming · MSHA ID 0503282
   Abandoned and Sealed 1986-03-03
7. Belvedere Stone

   Surface metal/non-metal · Belvedere Stone LLC · MSHA ID 0504808
   Abandoned 2007-08-21
8. Bob Lee Pit

   Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503242
   Abandoned 1979-07-24
9. BOCK PIT

   Surface metal/non-metal · Wark Trucking Company · MSHA ID 0504004
   Abandoned 2000-11-09
10. Bradshaw Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503276
    Abandoned 1979-07-26
11. Brauer Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503160
    Abandoned 1979-01-08
12. Broderick & Gibbons Pit #2

    Surface metal/non-metal · Broderick & Gibbons Inc · MSHA ID 0501944
    Abandoned 1979-07-23
13. Calder Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503275
    Abandoned 1979-07-23
14. Calmet Facility

    Facility metal/non-metal · London Mine Venture · MSHA ID 0503860
    Abandoned 1988-10-27
15. Carruthers Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0502961
    Abandoned 1979-01-08
16. Castle Sand Pit

    Surface metal/non-metal · Castle Concrete Company · MSHA ID 0500958
    Abandoned 1990-01-23
17. Castle Sand Plant

    Surface metal/non-metal · Castle Concrete Company · MSHA ID 0503669
    Abandoned 1990-01-31
18. Chapel Hills Pit

    Surface metal/non-metal · Colorado Silica Sand Inc · MSHA ID 0502477
    Abandoned 1990-01-25
19. Chipita Ranch Pit

    Surface metal/non-metal · Pioneer Sand Company · MSHA ID 0504016
    Abandoned 1989-09-20
20. Chipita Resources Portable

    Surface metal/non-metal · Rocky Mountain Asphalt · MSHA ID 0503798
    Abandoned 1991-04-29
21. Colar Compounds Mill

    Facility metal/non-metal · Colar Compounds Inc · MSHA ID 0501427
    Abandoned 1984-01-11
22. Colorado Springs Operation

    Facility metal/non-metal · Pioneer Sands LLC · MSHA ID 0503295
    Abandoned 2017-12-01
23. CONTINENTAL PIT

    Surface metal/non-metal · Castle Concrete Company · MSHA ID 0504423
    Abandoned 1999-08-09
24. Cook Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503159
    Abandoned 1979-07-23
25. Crusher #2

    Surface metal/non-metal · Dillon Construction · MSHA ID 0505124
    Abandoned 2022-03-01
26. Davis Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503273
    Abandoned 1979-07-24
27. De Vorss Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503274
    Abandoned 1979-07-23
28. Delacross Pit

    Surface metal/non-metal · Rays Diggins · MSHA ID 0502960
    Abandoned 1979-07-24
29. Delta Wash Plant

    Surface metal/non-metal · Schmidt Aggregates · MSHA ID 0501035
    Abandoned 2025-03-06
30. Dewell Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503243
    Abandoned 1979-07-23
31. Drennan Sand Pit

    Surface metal/non-metal · Cooley Gravel Company Of Colorado Springs Inc · MSHA ID 0503198
    Abandoned 1986-05-07
32. Dustrude Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503127
    Abandoned 1979-07-23
33. Flying W Gravel Pit

    Surface metal/non-metal · Broderick & Gibbons Inc · MSHA ID 0502412
    Abandoned 1989-05-17
34. Flying W Gravel Pit

    Surface metal/non-metal · City Of Colorado Springs · MSHA ID 0502999
    Abandoned 1982-08-17
35. Flying W Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0502968
    Abandoned 1979-07-23
36. Fountain Colony

    Surface metal/non-metal · Kiewit Western Company · MSHA ID 0504731
    Abandoned 2004-06-24
37. FOUNTAIN PIT

    Surface metal/non-metal · Martin Marietta Materials · MSHA ID 0503821
    Abandoned 2019-02-14
38. Freeman

    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503333
    Abandoned 1979-07-31
39. Gimera Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503246
    Abandoned 1979-01-23
40. Hanna

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503078
    Abandoned 1979-01-08
41. Haver Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503288
    Abandoned 1979-07-23
42. Hecla-Air Force Academy

    Surface metal/non-metal · A P Green Refractories Inc · MSHA ID 0503891
    Abandoned 1985-04-29
43. Herring Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503058
    Abandoned 1979-01-08
44. Hodgen Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503244
    Abandoned 1979-07-23
45. Hourglass Sands Industrial Drying Plant

    Surface metal/non-metal · Hourglass Sands, LLC · MSHA ID 0505088
    Abandoned 2020-11-07
46. Hudson Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503247
    Abandoned 1979-07-24
47. Janitell Pit

    Surface metal/non-metal · Pioneer Sand Company · MSHA ID 0502985
    Abandoned 1985-05-31
48. Jemadojin Sand Pit

    Surface metal/non-metal · Carmeuse Industrial Sands · MSHA ID 0504850
    Abandoned 2010-02-01
49. Kobilan Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503248
    Abandoned 1979-07-24
50. Kodiac Land Incorporated Pit

    Surface metal/non-metal · Triple S Gravel · MSHA ID 0502729
    Abandoned 1985-08-20
51. MASON SAND PIT

    Surface metal/non-metal · Pioneer Sand Company · MSHA ID 0502411
    Abandoned 2010-03-09
52. Mayhew Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503120
    Abandoned 1979-07-23
53. METSO1213S

    Surface metal/non-metal · Castle Rock Construction Company of Colorado LLC · MSHA ID 0505160
    Abandoned 2024-05-02
54. Midway Gravel Quarry

    Surface metal/non-metal · Midway Sand & Gravel Inc · MSHA ID 0503942
    Abandoned 1996-10-31
55. Mike Christian Pit 2

    Surface metal/non-metal · Schmidt-Tiago Construction Company · MSHA ID 0503204
    Abandoned 1985-04-01
56. Moss Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503121
    Abandoned 1979-07-23
57. Mountain Shadows Gravel Pit

    Surface metal/non-metal · R D Figgie Excavating Inc · MSHA ID 0504174
    Abandoned 1988-03-28
58. PIKE VIEW QUARRY

    Surface metal/non-metal · Castle Concrete Aggregates · MSHA ID 0501443
    Abandoned 2020-10-01
59. Pikes Peak

    Surface metal/non-metal · Red Jasper Granite Inc · MSHA ID 0500060
    Abandoned 1978-05-04
60. Polders Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0502975
    Abandoned 1979-07-23
61. PORTABLE POWER GRIZZLY

    Surface metal/non-metal · Pioneer Sand Company · MSHA ID 0504693
    Abandoned 2002-04-26
62. portable screen #157

    Surface metal/non-metal · Pioneer Sand Company Inc · MSHA ID 0504132
    Abandoned 2010-08-09
63. Power Screen Unit 18170

    Surface metal/non-metal · Pioneer Sand Company · MSHA ID 0504541
    Abandoned 2019-10-01
64. Pring Pit

    Surface metal/non-metal · Colorado Silica Sand Inc · MSHA ID 0503196
    Abandoned 1982-11-15
65. Queens Quarry

    Surface metal/non-metal · Castle Concrete Company · MSHA ID 0500009
    Abandoned 1991-09-25
66. RED ROCK GRAVEL PIT

    Surface metal/non-metal · Wark Trucking/Gary Wark · MSHA ID 0504582
    Abandoned 2000-10-23
67. Robert F Scheele Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503126
    Abandoned 1979-01-08
68. Roberts Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503245
    Abandoned 1979-07-24
69. Sams Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503157
    Abandoned 1979-03-12
70. Smith Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0502965
    Abandoned 1979-07-23
71. Snyder Quarry

    Surface metal/non-metal · Castle Concrete Aggregates · MSHA ID 0500444
    Abandoned 2014-08-19
72. Sokol Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503060
    Abandoned 1979-07-23
73. Sokol Pit

    Surface metal/non-metal · Martin Marietta Materials Inc. · MSHA ID 0504977
    Abandoned 2017-02-27
74. Solberg Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503061
    Abandoned 1979-10-09
75. St Peters Dome Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503122
    Abandoned 1979-07-23
76. Stage Road Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0502969
    Abandoned 1979-01-08
77. State Highway #83

    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503335
    Abandoned 1979-10-09
78. Strauss Pit

    Surface metal/non-metal · Broderick & Gibbons Inc · MSHA ID 0502285
    Abandoned 1986-03-28
79. Tower Pit 2

    Surface metal/non-metal · Schmidt-Tiago Construction Company · MSHA ID 0501036
    Abandoned 1979-02-21
80. Ward Edwards State Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0502833
    Abandoned 1979-07-23
81. Ward Edwards State Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503158
    Abandoned 1979-07-23
82. Wheeler Pit

    Surface metal/non-metal · Babour Const Co · MSHA ID 0502908
    Abandoned 1979-08-21
83. Wigwam Processing Plant

    Facility metal/non-metal · Little Pedro Mining Company · MSHA ID 0503772
    Abandoned 1987-09-02
84. Wilson Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503286
    Abandoned 1979-07-23
85. Wolf Pit #Ii

    Surface metal/non-metal · Colorado Silica Sand Inc · MSHA ID 0503296
    Abandoned 1987-12-11
86. Wolfe Pit

    Surface metal/non-metal · Castle Concrete Company · MSHA ID 0504173
    Abandoned 1992-03-16
87. Wyatt Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503298
    Abandoned 1979-07-23
88. Yoder Pit

    Surface metal/non-metal · El Paso County Dept Of Transportation · MSHA ID 0503059
    Abandoned 1979-07-23

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
• Montrose County 2,077
• Custer County 2,062
• Clear Creek County 1,996
• Park County 1,624
• Chaffee County 1,486
• Summit County 1,449

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.