Abandoned mines in St. Louis County, Minnesota

1. Mine openings

   shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
   15 1.0%
2. Mines and surface workings

   labelled mines, open pits, strip mines, placer and hydraulic workings
   347 22.2%
3. Quarries, gravel and borrow pits

   construction-material and industrial-mineral extraction
   676 43.3%
4. Dumps, tailings, spoil and gob

   what mining left above ground
   522 33.4%
5. Mills, tipples and facilities

   processing plants and hazardous structures
   1 0.1%

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.

1. 205 Plant

   Surface metal/non-metal · Split Rock Processing · MSHA ID 2104075
   Abandoned 2025-06-26
2. Amborn Pit

   Surface metal/non-metal · Saint Louis County Highway Department · MSHA ID 2102636
   Abandoned 1979-11-23
3. Anchor Lake Pit

   Surface metal/non-metal · Ulland Brothers Inc · MSHA ID 2101861
   Abandoned 1983-07-22
4. Argo

   Surface metal/non-metal · Mathy Constr. Co. DBA Northland Constrs. of Duluth · MSHA ID 2103719
   Abandoned 2026-07-27
5. ARM

   Surface metal/non-metal · Vinny's Trucking · MSHA ID 2103939
   Abandoned 2023-07-19
6. Arrowhead Peat Bog

   Surface metal/non-metal · Arrowhead Peat Company · MSHA ID 2100894
   Abandoned 1982-05-21
7. Arrowhead Quarry

   Surface metal/non-metal · Arrowhead Blacktop Company · MSHA ID 2100792
   Abandoned 1989-06-22
8. Arrowhead Sand & Gravel Pit

   Surface metal/non-metal · Arrowhead Sand & Gravel Inc · MSHA ID 2100458
   Abandoned 1986-09-30
9. Astec Plant

   Surface metal/non-metal · Dirt Work Specialists LLC · MSHA ID 2103914
   Abandoned 2019-07-23
10. AUBURN MINE

    Surface metal/non-metal · Auburn Minerals Llc · MSHA ID 2103073
    Abandoned 2002-04-20
11. Billington Gravel Pit

    Surface metal/non-metal · Billington Contracting Inc · MSHA ID 2103031
    Abandoned 2017-03-20
12. Biwabik Pit

    Surface metal/non-metal · Paul Jacobsen · MSHA ID 2103320
    Abandoned 2013-09-09
13. Blair Pit

    Surface metal/non-metal · Shafer Construction Co · MSHA ID 2102507
    Abandoned 1979-11-23
14. Brookston Pit

    Surface metal/non-metal · E W Coons Company · MSHA ID 2102667
    Abandoned 1979-01-30
15. Burnett Mill

    Facility metal/non-metal · Federal Ore & Chemicals Inc · MSHA ID 2100904
    Abandoned 1979-03-20
16. Burnett Mine

    Surface metal/non-metal · Burnett Aggregate Inc · MSHA ID 2103574
    Abandoned 2008-08-18
17. Canosia Road Pit

    Surface metal/non-metal · Rajala Construction Company Inc · MSHA ID 2102761
    Abandoned 1981-02-13
18. Canyon Quarry

    Surface metal/non-metal · SRM Materials LLC · MSHA ID 2103157
    Abandoned 2025-07-21
19. Carmi Gravel Pit

    Surface metal/non-metal · Mesaba Construction Company · MSHA ID 2102930
    Abandoned 1995-10-06
20. CCEDER RAPIDS MV 380 PCS-4-411-13

    Surface metal/non-metal · LOUIS LEUSTEK & SONS INC · MSHA ID 2103799
    Abandoned 2013-09-10
21. CEC-2

    Surface metal/non-metal · NTT of Minnesota, Inc. · MSHA ID 2103337
    Abandoned 2008-04-17
22. CECI-Roadrunner

    Surface metal/non-metal · NTT of Minnesota Inc. · MSHA ID 2103342
    Abandoned 2008-04-17
23. Cedar Rapids 9000

    Surface metal/non-metal · NTT of Minnesota Inc · MSHA ID 2103561
    Abandoned 2008-04-17
24. Cemetery Pit

    Surface metal/non-metal · City Of Chisholm · MSHA ID 2102482
    Abandoned 1981-06-19
25. Cliffs Erie, LLC.

    Surface metal/non-metal · Cleveland Cliffs Inc · MSHA ID 2100256
    Abandoned 2005-10-03
26. Collin Sand And Gravel

    Surface metal/non-metal · Collin Sand And Gravel · MSHA ID 2103469
    Abandoned 2011-09-15
27. Connie Mine

    Surface metal/non-metal · Pittsburgh Pacific Company · MSHA ID 2102589
    Abandoned 1981-06-24
28. Crushing Spread

    Surface metal/non-metal · Red Top Construction, LLC · MSHA ID 2103766
    Abandoned 2016-07-21
29. Curtis Pit And Mill

    Surface metal/non-metal · Wissota Sand & Gravel Company · MSHA ID 2102570
    Abandoned 1984-05-24
30. Daugherty Aggregates

    Surface metal/non-metal · Daugherty Trucking & Aggregates · MSHA ID 2103041
    Abandoned 1994-07-12
31. DEL ZOTTO PRODUCTS, INC.

    Surface metal/non-metal · Del Zotto Products Inc · MSHA ID 2101812
    Abandoned 2001-04-24
32. Dinley Pit

    Surface metal/non-metal · Greg Mangold Construction · MSHA ID 2103637
    Abandoned 2008-08-11
33. Douglas Screening Plant

    Facility metal/non-metal · Pittsburgh Pacific Company · MSHA ID 2102509
    Abandoned 1978-11-22
34. Eagle Lake Pit And Mill

    Surface metal/non-metal · Lundin Construction Company Of Cromwell · MSHA ID 2102808
    Abandoned 1985-05-10
35. East Range Gravel

    Surface metal/non-metal · East Range Gravel Company Inc · MSHA ID 2100505
    Abandoned 1990-09-28
36. EL JAY #1

    Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2102548
    Abandoned 1998-02-04
37. EL-JAY #2

    Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2101810
    Abandoned 2002-04-02
38. EL-JAY #3

    Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2103029
    Abandoned 2002-04-05
39. Elephant Lake Pit

    Surface metal/non-metal · Ulland Brothers Inc · MSHA ID 2102817
    Abandoned 1981-03-27
40. Engen Sand & Gravel

    Surface metal/non-metal · Engen Sand & Gravel · MSHA ID 2103925
    Abandoned 2018-08-14
41. Erie Pit And Mill

    Facility metal/non-metal · Abi Contracting Inc · MSHA ID 2102757
    Abandoned 1984-07-09
42. Erie Pit Area 2

    Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2102804
    Abandoned 1981-02-13
43. EVTAC MINE

    Surface metal/non-metal · Evtac Mining · MSHA ID 2100200
    Abandoned 2003-12-18
44. EVTAC PLANT

    Facility metal/non-metal · EVTAC Mining · MSHA ID 2100828
    Abandoned 2003-12-18
45. Finlay-2

    Surface metal/non-metal · NTT of Minnesota Inc · MSHA ID 2100796
    Abandoned 2005-09-19
46. Fredrick Pit

    Surface metal/non-metal · Ulland Brothers Inc · MSHA ID 2102697
    Abandoned 1981-06-24
47. French River Sand And Gravel

    Surface metal/non-metal · French River Excavating · MSHA ID 2103077
    Abandoned 1995-06-08
48. Glacier Pit

    Surface metal/non-metal · Glacier Paving Inc · MSHA ID 2102929
    Abandoned 2009-09-10
49. GP 500

    Surface metal/non-metal · Northland Constructors · MSHA ID 2102999
    Abandoned 2022-08-30
50. GRAND LAKE AGGREGATE'S INC.

    Surface metal/non-metal · Grand Lake Aggregates Inc · MSHA ID 2103141
    Abandoned 1998-06-03
51. Granite Companies LLC

    Surface metal/non-metal · Granite Companies LLC · MSHA ID 2104113
    Abandoned 2026-05-21
52. Gulbranson Pit

    Surface metal/non-metal · Gulbranson Excavating · MSHA ID 2102484
    Abandoned 1981-08-31
53. Gulbranson Pit

    Surface metal/non-metal · Reliance Blacktop Inc · MSHA ID 2102487
    Abandoned 1978-07-01
54. H.P. 400

    Surface metal/non-metal · Northland Constructors · MSHA ID 2101302
    Abandoned 2023-06-20
55. Hagsten Gravel Pit

    Surface metal/non-metal · Hagsten Excavating · MSHA ID 2103643
    Abandoned 2014-10-21
56. Hibbing Green Quarry

    Surface metal/non-metal · Cold Spring Granite Company · MSHA ID 2102626
    Abandoned 1985-12-09
57. Hibbing Laboratory

    Facility metal/non-metal · Pickands Mather Services Inc · MSHA ID 2101152
    Abandoned 1992-01-13
58. Hibbing Pit Wash Plant #2

    Surface metal/non-metal · Superior Forrest Aggregates Inc. · MSHA ID 2103046
    Abandoned 2019-06-17
59. Hibtac Pit & Mill

    Facility metal/non-metal · Abi Contracting Inc · MSHA ID 2102616
    Abandoned 1982-09-07
60. Highway 53 Pit

    Surface metal/non-metal · D L Johnson & Sons Inc · MSHA ID 2102863
    Abandoned 1985-05-10
61. Holmes Excavating

    Surface metal/non-metal · Holmes Excavating · MSHA ID 2103636
    Abandoned 2011-08-15
62. Impro Gravel Pit

    Surface metal/non-metal · E W Coons Company · MSHA ID 2102597
    Abandoned 1983-11-07
63. J&L Central Repair Shop

    Surface metal/non-metal · Jones & Laughlin Steel Corp · MSHA ID 2101576
    Abandoned 1981-06-18
64. JCI #1

    Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2103196
    Abandoned 2002-04-20
65. Julia Mill

    Facility metal/non-metal · Pittsburgh Pacific Company · MSHA ID 2100804
    Abandoned 1986-06-02
66. Kinmount Pit

    Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2102418
    Abandoned 1984-05-02
67. Knox Extention Mine

    Surface metal/non-metal · Pittsburgh Pacific Company · MSHA ID 2101673
    Abandoned 1981-06-24
68. Lakeshore Blacktop Pit

    Surface metal/non-metal · Lakeshore Blacktop · MSHA ID 2101457
    Abandoned 1979-11-23
69. Lehman Pit

    Surface metal/non-metal · Kenneth Lehman Logging · MSHA ID 2103734
    Abandoned 2016-07-19
70. Leustek Pit

    Surface metal/non-metal · Louis Leustek & Sons Inc · MSHA ID 2101508
    Abandoned 1979-11-23
71. Lismore Pit

    Surface metal/non-metal · Rajala Construction Company Inc · MSHA ID 2102837
    Abandoned 1981-08-31
72. Mailing Pit

    Surface metal/non-metal · Ken Sons Services · MSHA ID 2102383
    Abandoned 1979-11-23
73. Mangusson Pit & Mill

    Surface metal/non-metal · Ulland Brothers Inc · MSHA ID 2101513
    Abandoned 1981-03-27
74. Maplegrove Pit

    Surface metal/non-metal · Older Construction Co · MSHA ID 2102496
    Abandoned 1985-05-10
75. Mattson Deep Lake Pit & Mill

    Surface metal/non-metal · Rajala Construction Company Inc · MSHA ID 2101494
    Abandoned 1981-02-13
76. Mesaba Construction Company Deer La

    Surface metal/non-metal · Mesaba Construction Company · MSHA ID 2100569
    Abandoned 1978-08-03
77. Mesabi Nugget Delaware, LLC

    Facility metal/non-metal · Mesabi Nugget Delaware, LLC · MSHA ID 2103689
    Abandoned 2022-04-26
78. Mile Post 7 Pit #3

    Surface metal/non-metal · Ulland Brothers Inc · MSHA ID 2102754
    Abandoned 1981-03-27
79. Mining Resources, LLC

    Surface metal/non-metal · Mining Resources, LLC · MSHA ID 2103775
    Abandoned 2022-09-12
80. Minnamax

    Underground metal/non-metal · Amax Exploration Inc · MSHA ID 2102399
    Abandoned 1978-10-31
81. Minntac Crushing

    Surface metal/non-metal · E W Coons Company · MSHA ID 2102744
    Abandoned 1982-09-01
82. Minntac Maintenance Dept.

    Surface metal/non-metal · United States Steel Corp-Minnesota Ore Operations · MSHA ID 2100819
    Abandoned 2014-03-31
83. Minntac Operation

    Surface metal/non-metal · Ulland Brothers Inc · MSHA ID 2102665
    Abandoned 1981-03-27
84. Minntac Screening

    Surface metal/non-metal · Veit & Company, Inc. · MSHA ID 2103770
    Abandoned 2016-08-24
85. Minorca Site Pit

    Surface metal/non-metal · Ulland Brothers Inc · MSHA ID 2102728
    Abandoned 1981-03-31
86. Moose Line Pit

    Surface metal/non-metal · Missabi Bitumen Blacktop · MSHA ID 2102834
    Abandoned 1981-08-31
87. Munger Pit Or Munger Pit & Mill

    Surface metal/non-metal · E W Coons Company · MSHA ID 2100504
    Abandoned 1983-09-19
88. NAT'L STEEL PELLET CO (MINE)

    Surface metal/non-metal · National Steel Pellet Company · MSHA ID 2100249
    Abandoned 2003-06-06
89. National Pit And Mill

    Surface metal/non-metal · Abi Contracting Inc · MSHA ID 2102643
    Abandoned 1982-09-01
90. Normana Pit

    Surface metal/non-metal · Saint Louis County Highway Department · MSHA ID 2102481
    Abandoned 1979-11-23
91. North Central Aggregates

    Surface metal/non-metal · North Central Aggregates · MSHA ID 2101813
    Abandoned 2007-05-31
92. Northwest Ore Div/Mc Kinley Extension Mi

    Surface metal/non-metal · Ltv Steel Company Inc · MSHA ID 2100286
    Abandoned 1993-04-06
93. Northwest Ore Div/Mc Kinley Group

    Surface metal/non-metal · Jones & Laughlin Steel Corp · MSHA ID 2100253
    Abandoned 1982-08-31
94. OMNICONE

    Surface metal/non-metal · Northland Constructors · MSHA ID 2102782
    Abandoned 2022-08-30
95. Peterson Pit

    Surface metal/non-metal · Peterson Mobil Sales · MSHA ID 2102406
    Abandoned 1980-05-14
96. Pittsburgh Pacific Company Coons Pa

    Facility metal/non-metal · Pittsburgh Pacific Company · MSHA ID 2100259
    Abandoned 1978-10-02
97. Plant #2

    Surface metal/non-metal · North Central Aggregates · MSHA ID 2103418
    Abandoned 2006-06-30
98. Plant #7 - Kodiak 400

    Surface metal/non-metal · Premier Aggregates LLC · MSHA ID 2103317
    Abandoned 2003-03-25
99. PORTABLE #1

    Surface metal/non-metal · Dresel's Aggregate, Inc. · MSHA ID 2103082
    Abandoned 2016-08-12
100. Portable Crusher

     Surface metal/non-metal · Louis Leustek & Sons Inc · MSHA ID 2102909
     Abandoned 1993-04-16
101. Portable Crusher

     Surface metal/non-metal · Seppi Brothers Concrete Products Corp · MSHA ID 2103263
     Abandoned 2024-07-16
102. Portec Screen

     Surface metal/non-metal · Lind's Sand & Gravel · MSHA ID 2103974
     Abandoned 2022-08-25
103. Power-O-Peat Mill

     Facility metal/non-metal · Power-O-Peat Company · MSHA ID 2100234
     Abandoned 1982-05-21
104. Powerscreen P4

     Surface metal/non-metal · NTT of Minnesota, Inc. · MSHA ID 2103528
     Abandoned 2008-04-17
105. Quality Control

     Surface metal/non-metal · United States Steel Corp · MSHA ID 2100800
     Abandoned 1983-10-14
106. R-F Gross X Nelson

     Surface metal/non-metal · Rhude & Fryberger Inc · MSHA ID 2100273
     Abandoned 1980-06-24
107. Rana Mine And Mill

     Surface metal/non-metal · Rhude & Fryberger Inc · MSHA ID 2100905
     Abandoned 1987-09-28
108. Rasmusson Forest Fuels Inc

     Surface metal/non-metal · Rasmusson Forest Fuels Inc · MSHA ID 2103879
     Abandoned 2018-09-11
109. Reed Screener

     Surface metal/non-metal · Low Impact Excavators, Inc. · MSHA ID 2103639
     Abandoned 2014-10-16
110. Rental Track Screen

     Surface metal/non-metal · Louis Leustek & Sons Inc · MSHA ID 2103461
     Abandoned 2020-07-14
111. Rogalla Pit

     Surface metal/non-metal · Mc Lean Construction Company · MSHA ID 2102736
     Abandoned 1985-05-10
112. Rolle Ready Mix Pit

     Surface metal/non-metal · Rolle Ready Mix · MSHA ID 2100598
     Abandoned 1982-09-01
113. Rouchleau Annex

     Surface metal/non-metal · Pittsburgh Pacific Company · MSHA ID 2102510
     Abandoned 1980-06-24
114. Sabin'S Crushing

     Surface metal/non-metal · Sabin Construction · MSHA ID 2102483
     Abandoned 1988-11-30
115. Saginaw Pit

     Surface metal/non-metal · E W Coons Company · MSHA ID 2102776
     Abandoned 1985-01-11
116. Saginaw Pit

     Surface metal/non-metal · AJ's Aggregate & Trucking LLC · MSHA ID 2103712
     Abandoned 2013-03-20
117. SCHUBITZKE GRAVEL PIT

     Surface metal/non-metal · Schubitzke Sand & Gravel · MSHA ID 2101427
     Abandoned 1998-02-04
118. Screen Plant

     Surface metal/non-metal · Radotich Enterprises, LLC · MSHA ID 2103748
     Abandoned 2016-08-24
119. Screening Plant

     Surface metal/non-metal · Jola & Sopp Excavating Inc · MSHA ID 2103720
     Abandoned 2016-08-24
120. Sharon - Culver - Wabegon Group

     Surface metal/non-metal · Rhude & Fryberger Inc · MSHA ID 2101735
     Abandoned 1981-06-10
121. Sherman Mine

     Surface metal/non-metal · United States Steel Corp · MSHA ID 2100285
     Abandoned 1983-06-27
122. Sherman Plant

     Facility metal/non-metal · United States Steel Corp · MSHA ID 2100824
     Abandoned 1980-02-25
123. Sly Pit

     Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2102486
     Abandoned 1978-11-22
124. South Sauntry Mine

     Surface metal/non-metal · Pittsburgh Pacific Company · MSHA ID 2101565
     Abandoned 1980-10-06
125. Spokane #1 Impacter

     Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2101796
     Abandoned 1994-11-07
126. SPREAD #1

     Surface metal/non-metal · Northstar Aggregates · MSHA ID 2103131
     Abandoned 1998-09-15
127. St Louis County Minnesota Pits

     Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2102926
     Abandoned 1985-12-09
128. St Louis County Pit #0167

     Surface metal/non-metal · Ulland Brothers Inc · MSHA ID 2102743
     Abandoned 1980-02-06
129. Staff Departments

     Surface metal/non-metal · United States Steel Corp · MSHA ID 2100798
     Abandoned 1983-10-14
130. State Road No 66 Pit

     Surface metal/non-metal · Saint Louis County Highway Department · MSHA ID 2102549
     Abandoned 1978-10-09
131. Steve Screener

     Surface metal/non-metal · Rock,Snow & Fire, LLC · MSHA ID 2103972
     Abandoned 2024-07-11
132. TELSMITH #1

     Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2103006
     Abandoned 2002-04-20
133. TELSMITH #2

     Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2103075
     Abandoned 2002-04-20
134. TELSMITH #3

     Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2103139
     Abandoned 2002-04-20
135. Thunderbird North Pit

     Surface metal/non-metal · Rhude & Fryberger Inc · MSHA ID 2102683
     Abandoned 1980-06-24
136. Thunderbird North Road Rock Pit

     Facility metal/non-metal · Abi Contracting Inc · MSHA ID 2102770
     Abandoned 1984-07-09
137. Twin Ports Blacktop Incorporated

     Surface metal/non-metal · Twin Ports Blacktop Inc · MSHA ID 2102997
     Abandoned 1990-09-24
138. U S Rouchleau Grp

     Surface metal/non-metal · United States Steel Corp · MSHA ID 2100284
     Abandoned 1978-11-07
139. Ulland Bros Shops

     Surface metal/non-metal · Ulland Brothers Inc · MSHA ID 2101820
     Abandoned 1979-06-05
140. Warehouse

     Surface metal/non-metal · United States Steel Corp · MSHA ID 2100797
     Abandoned 1983-10-14
141. Wash Plant

     Surface metal/non-metal · Bougalis and Sons Inc · MSHA ID 2103456
     Abandoned 2007-09-10
142. Wash Plant #1

     Surface metal/non-metal · Omar's Sand & Gravel, Inc. · MSHA ID 2103591
     Abandoned 2025-03-19
143. WASHPLANT #1

     Surface metal/non-metal · Premier Aggregates Inc · MSHA ID 2103146
     Abandoned 2002-09-23
144. Whiteside Mine Research Facilities

     Surface metal/non-metal · Snyder Mining Division-Shenango Furnace · MSHA ID 2100277
     Abandoned 1979-01-03
145. Whitney Mine

     Surface metal/non-metal · M A Hanna Company · MSHA ID 2101493
     Abandoned 1984-09-20
146. WINGER GRAVEL

     Surface metal/non-metal · C & C WINGER, INC · MSHA ID 2103836
     Abandoned 2022-05-25
147. Zlonis Pit & Mill

     Surface metal/non-metal · Ulland Brothers Inc · MSHA ID 2102599
     Abandoned 1981-03-27

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

• Itasca County 476
• Stearns County 373
• Otter Tail County 353
• Dakota County 275
• Pine County 247
• Wright County 226
• Lake County 224
• Crow Wing County 191
• Beltrami County 191
• Cass County 189
• Aitkin County 188
• Morrison County 186

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.