Abandoned mines in Grant County, Oregon

1. Mine openings

   shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
   531 44.7%
2. Prospect pits and trenches

   shallow exploration diggings that never became a mine
   234 19.7%
3. Mines and surface workings

   labelled mines, open pits, strip mines, placer and hydraulic workings
   85 7.2%
4. Quarries, gravel and borrow pits

   construction-material and industrial-mineral extraction
   239 20.1%
5. Dumps, tailings, spoil and gob

   what mining left above ground
   99 8.3%

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. #3 SCREEN

   Surface metal/non-metal · Deschutes Ready-Mix Sand & Gravel Company · MSHA ID 3503246
   Abandoned 2001-03-01
2. Badger Mine

   Underground metal/non-metal · American Copper & Nickel Company Inc · MSHA ID 3503096
   Abandoned 1982-09-14
3. Big Creek Mine

   Surface metal/non-metal · Agau Mining Company Inc · MSHA ID 3503093
   Abandoned 1983-09-14
4. Buffalo Mine

   Underground metal/non-metal · Platina Resources Corp · MSHA ID 3502952
   Abandoned 1994-09-12
5. Canyon Mountain Mine

   Surface metal/non-metal · Camm-Tex International Inc · MSHA ID 3503339
   Abandoned 1990-10-01
6. Carpenter Pit & Plant

   Surface metal/non-metal · Grant County Redi-Mix · MSHA ID 3500493
   Abandoned 1987-01-12
7. Coho Creek Pit

   Surface metal/non-metal · Modular Crushing Inc · MSHA ID 3502393
   Abandoned 1978-11-15
8. Continental Mine

   Underground metal/non-metal · Gold Circle Mining Company Inc · MSHA ID 3503037
   Abandoned 1981-09-01
9. Cougar Mine

   Underground metal/non-metal · William A Bowes Inc · MSHA ID 3502386
   Abandoned 1986-03-24
10. Cougar Ridge Mine

    Underground metal/non-metal · Differential Energy Inc · MSHA ID 3503118
    Abandoned 1984-03-14
11. Deardorff Pit

    Surface metal/non-metal · Morris Keudell · MSHA ID 3502815
    Abandoned 1978-11-15
12. Dixie Meadows Mine

    Underground metal/non-metal · Phelps Dodge Corp · MSHA ID 3502355
    Abandoned 1982-11-17
13. Dollar Basin Pit

    Surface metal/non-metal · U S Forest Service · MSHA ID 3502354
    Abandoned 1979-11-07
14. Dollar Basin Pit

    Surface metal/non-metal · D Mc E Corp · MSHA ID 3502795
    Abandoned 1980-07-10
15. Four Corners Pit

    Surface metal/non-metal · E H Itschner Company · MSHA ID 3502924
    Abandoned 1980-05-21
16. Ibex Mine

    Underground metal/non-metal · American Copper & Nickel Company Inc · MSHA ID 3503039
    Abandoned 1984-06-01
17. Jim (1)

    Underground metal/non-metal · Woodard Mining Corp · MSHA ID 3503283
    Abandoned 1988-06-29
18. Johnny Park Ii

    Underground metal/non-metal · Charles E Millar · MSHA ID 3502813
    Abandoned 1979-08-28
19. Lucky Seven Mine

    Surface metal/non-metal · Smith Enterprises · MSHA ID 3502567
    Abandoned 1979-01-17
20. Marysville Claim

    Surface metal/non-metal · Immanuel Mining Enterprises · MSHA ID 3503094
    Abandoned 1983-09-14
21. Mc Coy Creek Rock Pit

    Surface metal/non-metal · Gross & Hanson · MSHA ID 3502925
    Abandoned 1980-05-20
22. New Independence Mine

    Underground metal/non-metal · William A Bowes Inc · MSHA ID 3502752
    Abandoned 1979-11-05
23. New York Mine

    Underground metal/non-metal · William A Bowes Inc · MSHA ID 3502387
    Abandoned 1981-09-01
24. ORMC 163075

    Underground metal/non-metal · Red Vein · MSHA ID 3503731
    Abandoned 2010-07-21
25. Parrish Cabin Pit

    Surface metal/non-metal · Western Roads Inc · MSHA ID 3503108
    Abandoned 1983-02-17
26. Pine Creek Pit

    Surface metal/non-metal · E H Itschner Company · MSHA ID 3502814
    Abandoned 1978-11-22
27. Royal White Mine

    Underground metal/non-metal · Ray Myers Partner · MSHA ID 3501090
    Abandoned 1978-11-22
28. Skidgel Contracting LLC

    Surface metal/non-metal · Skidgel Contracting LLC · MSHA ID 3503562
    Abandoned 2002-08-06
29. Valley Pit And Plant

    Surface metal/non-metal · Valley Sand Inc · MSHA ID 3502527
    Abandoned 1979-11-07
30. Valley Sand & Gravel Dredge

    Surface metal/non-metal · Valley Sand & Gravel Dredge · MSHA ID 3502796
    Abandoned 1979-11-07
31. Walton Pit

    Surface metal/non-metal · Poe Asphalt Paving Inc · MSHA ID 3503015
    Abandoned 1982-12-28
32. Wyatt Mine

    Surface metal/non-metal · John Day Mining Company · MSHA ID 3503092
    Abandoned 1982-11-16

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

• Baker County 1,601
• Josephine County 1,187
• Malheur County 1,060
• Jackson County 898
• Douglas County 876
• Linn County 836
• Harney County 767
• Lane County 716
• Lake County 606
• Crook County 499
• Clackamas County 421
• Klamath County 353

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.