Mining Incidents
Abandoned mine inventory

Abandoned mines in Lyon County, Nevada

Lyon County, Nevada has 6,309 mine and prospect features on USGS topographic maps published 1950–1994, including 1,184 mine openings (shafts, adits and air shafts) and 4,857 prospect pits; 73 of the features carry a name on the map. MSHA's register carries 66 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Lyon County, every OSMRE abandoned mine land problem in the county, and every MSHA-registered mine here with status Abandoned. Named features are listed below; unnamed ones are counted by type. Locations are deliberately not shown: this page says what abandoned workings are in the county, not where to find them. They are dangerous and should not be entered.

Mapped mine features (USGS)
6,309
Mine openings
1,184
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
66
73 features carry a name4,857 prospect pits56 quadrangle maps, published 1950–1994 0 MSHA mines abandoned and sealed
What the features are
  1. Mine openings
    shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
    1,184 18.8%
  2. Prospect pits and trenches
    shallow exploration diggings that never became a mine
    4,857 77.0%
  3. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    62 1.0%
  4. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    159 2.5%
  5. Dumps, tailings, spoil and gob
    what mining left above ground
    47 0.7%
Named features on the maps73 named · from the USGS compilation
Name on map Feature
Alhambra Mine Mine Shaft
Amazon Mine Mine Shaft
Blue Jay Mine Mine Shaft
Blue Jay Mine Prospect Pit
Blue Stone Mine Adit
Bluestone Mine Adit
Boulder Hill Mine Mine Shaft
Boyle Tunnel Adit
Buckeye Mine Mine Shaft
Cambridge Mine Mine Shaft
Casting Copper Mine Mine Shaft
Casting Mine Mine Shaft
Christianson Shaft Mine Shaft
Copper Ridge Mine Adit
Copper Ridge Mine Mine Shaft
Cowboy Mine Adit
Cowboy Mine Adit
Daney Mine Mine Shaft
Dayton Mine Mine Shaft
Devils Gate Adit
Douglas Hill Mine Open Pit Mine
Douglas Hill Mine Prospect Pit
Dyke Adit Adit
Florida Shaft Mine Shaft
Guild Placer Mines Placer Mine area
Guild Placer Mines Placer Mine
Gypsum Mine Quarry - Gypsum
Haywood Mine Mine Shaft
Haywood Mine Mine Shaft
Hercules Mine Adit
Hercules Mine Mine Shaft
Homestake Mine Adit
Homestake Mine Mine Shaft
Hulley - Logan Mine Adit
Jackpot Mine Mine Shaft
Kossuth Mine Mine Shaft
Ludwig Mine Mine Shaft
Malachite Mine Mine Shaft
Martha Washington Shaft Mine Shaft
Mason Valley Mine Mine Shaft
Mason Valley Mine Mine Shaft
May Queen Mine Mine Shaft
May Queen Mine Prospect Pit
Montana - Yerington Mine Mine Shaft
Montana-Yerington Mine Open Pit Mine
Nevada - Denver Mine Mine Shaft
Nevada-Denver Mine Mine Shaft
Oest Mine Mine Shaft
Oest Mine Mine Shaft
Oest Mine Mine Shaft
Ramsey Comstock Mine Mine Shaft
Ramsey Mine Mine Shaft
Ramsey Mine Mine Shaft
Ramsey-Comstock Mine Mine Shaft
Rickey Mine Mine
Rockland Mines Adit
Rockland Mines Adit
Rosetta Mine Mine Shaft
Rosetta Mine Mine Shaft
Ruth Mine Adit
Ruth Mine Adit
Smith Valley Mine Mine Shaft
Smith Valley Mine Mine Shaft
South Comstock Mine Mine Shaft
Talapoosa Mining District Mine Shaft
Thanksgiving Mine Adit
Thanksgiving Mine Mine Shaft
Vulcano Mine Mine Shaft
Western Nevada Mine Mine Shaft
Wheeler Mine Adit
Wilson Mines Adit
Wilson Mines Adit
Yerington Mine Open Pit Mine area

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.

MSHA-registered mines with status Abandoned66 on register
  1. Agri Mineral Mine & Mill
    Surface metal/non-metal · Agri Mineral Inc · MSHA ID 2601822
    Abandoned
  2. Anderson Pit & Mill Or Anderson Pit
    Surface metal/non-metal · Eagle Valley Construction Company · MSHA ID 2600432
    Abandoned
  3. Big Canyon Mine
    Surface metal/non-metal · TNT Ventures, LLC · MSHA ID 2602672
    Abandoned
  4. Billy Boy
    Surface metal/non-metal · PMMR Corp. · MSHA ID 2602502
    Abandoned
  5. Blue Jay Mine
    Surface metal/non-metal · Fairbanks R & D · MSHA ID 2602140
    Abandoned
  6. Buckeye Mine
    Surface metal/non-metal · Comstock Minerals Development Company · MSHA ID 2602702
    Abandoned
  7. CANYON CREEK CONSTRUCTION
    Surface metal/non-metal · Canyon Creek Construction Inc · MSHA ID 2602267
    Abandoned
  8. Canyon Rock
    Surface metal/non-metal · Canyon Rock Inc · MSHA ID 2602129
    Abandoned
  9. Catherine Mine
    Underground metal/non-metal · Marshall Earth Resources Inc · MSHA ID 2601814
    Abandoned
  10. Cedarapids CSC380 Screen/cone plant
    Surface metal/non-metal · H.E. Hunewill Construction Co. Inc. · MSHA ID 2602588
    Abandoned
  11. CEDARAPIDS JAW CRUSHER,S/N5052
    Surface metal/non-metal · H E Hunewill Construction Company Inc · MSHA ID 2601002
    Abandoned
  12. CMDC Mill Site
    Facility metal/non-metal · Comstock Minerals Development Company · MSHA ID 2602701
    Abandoned
  13. Columbia
    Surface metal/non-metal · Alta Exploration Inc · MSHA ID 2601872
    Abandoned
  14. Como Mine
    Facility metal/non-metal · Silver State Mining Inc · MSHA ID 2601748
    Abandoned
  15. Como Mine
    Surface metal/non-metal · Tseng Mining Company · MSHA ID 2601855
    Abandoned
  16. COPPER TEK CORP. MINE
    Surface metal/non-metal · Singatse Peak Services, LLC · MSHA ID 2602106
    Abandoned
  17. Dayton BLM pit
    Surface metal/non-metal · Sierra View Equipment Inc · MSHA ID 2602903
    Abandoned
  18. Dayton Consolidated Pit
    Surface metal/non-metal · Houston Oil & Minerals Corp · MSHA ID 2601449
    Abandoned
  19. Dayton Mine & Mill
    Surface metal/non-metal · De La Mare Mine Ltd · MSHA ID 2601627
    Abandoned
  20. Dayton Pit
    Surface metal/non-metal · Robert L Helms Construction & Development Co · MSHA ID 2600439
    Abandoned
  21. Dayton Pit
    Surface metal/non-metal · Cinderlite Trucking Corp · MSHA ID 2602777
    Abandoned
  22. Dayton Properties
    Surface metal/non-metal · Spring Valley Ltd · MSHA ID 2601774
    Abandoned
  23. Dayton Tailings Mill
    Facility metal/non-metal · Alhambra Mines Inc · MSHA ID 2601903
    Abandoned
  24. Deer Run Site
    Surface metal/non-metal · Eagle Valley Construction Company · MSHA ID 2601751
    Abandoned
  25. El Jay Cone Crusher S/N 42E0678
    Surface metal/non-metal · H E Hunewill Construction Company Inc · MSHA ID 2601484
    Abandoned
  26. EL JAY CONE CRUSHER, S/N 65
    Surface metal/non-metal · H E Hunewill Construction Company Inc · MSHA ID 2601118
    Abandoned
  27. EL JAY CONE CRUSHER,S/N 4260280
    Surface metal/non-metal · H E Hunewill Construction Company Inc · MSHA ID 2601474
    Abandoned
  28. Fernley Airport Pit
    Surface metal/non-metal · A & K Earth Movers, Inc. · MSHA ID 2602534
    Abandoned
  29. Fernley Pit
    Surface metal/non-metal · J C Compton Company · MSHA ID 2601466
    Abandoned
  30. Fernley Quarry
    Surface metal/non-metal · Nevada Aggregates · MSHA ID 2602892
    Abandoned
  31. Gold Canyon Incorporated
    Surface metal/non-metal · Gold Canyon Inc · MSHA ID 2601835
    Abandoned
  32. Hazemag Impact Crusher S/N HU1732
    Surface metal/non-metal · Road and Highway Builders, LLC · MSHA ID 2602493
    Abandoned
  33. HAZEN PIT
    Surface metal/non-metal · Jack N Tedford Inc · MSHA ID 2600442
    Abandoned
  34. HAZEN PIT
    Surface metal/non-metal · Gopher Rock · MSHA ID 2601875
    Abandoned
  35. HUGHES ROCK & SAND PIT
    Surface metal/non-metal · Hughes Rock & Sand Inc · MSHA ID 2600431
    Abandoned
  36. Hulley-Logan
    Surface metal/non-metal · Intermountain Exploration Company · MSHA ID 2601432
    Abandoned
  37. Ida Mine
    Underground metal/non-metal · Ida Consolidated Mines · MSHA ID 2601587
    Abandoned
  38. Johnson Pit
    Surface metal/non-metal · Robert C Gebhardt Company · MSHA ID 2601518
    Abandoned
  39. Korc Placer Claims
    Surface metal/non-metal · Southern Miners Inc · MSHA ID 2601783
    Abandoned
  40. L Y 30-1
    Surface metal/non-metal · Valley Crest Landscape Inc · MSHA ID 2601640
    Abandoned
  41. Lost Branch Mine Group
    Surface metal/non-metal · Lost Branch Mine Group · MSHA ID 2601319
    Abandoned
  42. Lucerne Underground Mine
    Underground metal/non-metal · Comstock Mining LLC · MSHA ID 2602771
    Abandoned
  43. LY-23
    Surface metal/non-metal · Gopher Construction Inc · MSHA ID 2602354
    Abandoned
  44. MOMI MINE
    Underground metal/non-metal · Momi Mining Company · MSHA ID 2602401
    Abandoned
  45. Moundhouse Pit
    Surface metal/non-metal · Frehner Construction Co · MSHA ID 2602491
    Abandoned
  46. Nevada Cement Co Limestone Quarry
    Surface metal/non-metal · Nevada Cement Company · MSHA ID 2600814
    Abandoned
  47. NV Aggregates Screen #2
    Surface metal/non-metal · NV Aggregates · MSHA ID 2602867
    Abandoned
  48. Oest Mine
    Underground metal/non-metal · Mks Inc · MSHA ID 2601828
    Abandoned
  49. OLINGHOUSE PROJECT
    Surface metal/non-metal · Alta Gold Company · MSHA ID 2602353
    Abandoned
  50. Oliver Hills Leach Facility
    Surface metal/non-metal · Oliver Hills Mining Company Inc · MSHA ID 2601675
    Abandoned
  51. Pine Grove
    Surface metal/non-metal · J & H Mining Corp · MSHA ID 2601809
    Abandoned
  52. Pine Grove Reclaim Project
    Surface metal/non-metal · Placer Solutions LLC · MSHA ID 2602828
    Abandoned
  53. Portable Crusher Ii
    Surface metal/non-metal · Dayton Sand & Gravel · MSHA ID 2601901
    Abandoned
  54. Rental Portable Crusher
    Surface metal/non-metal · Q&D Construction · MSHA ID 2602865
    Abandoned
  55. Rental Portable Crusher
    Surface metal/non-metal · Q&D Construction · MSHA ID 2602866
    Abandoned
  56. Section 8 Group Mines
    Surface metal/non-metal · Cr Minerals Corp · MSHA ID 2600678
    Abandoned
  57. Silver Springs County Pit
    Surface metal/non-metal · Lyon County-Road District No 1 · MSHA ID 2600011
    Abandoned
  58. Silver Springs Plant
    Surface metal/non-metal · Silver Springs Aggregates LLC · MSHA ID 2602660
    Abandoned
  59. Six Mile Canyon Mine & Mill
    Surface metal/non-metal · Gold Canyon Inc · MSHA ID 2601935
    Abandoned
  60. South Comstock
    Surface metal/non-metal · Spring Valley Mining · MSHA ID 2601678
    Abandoned
  61. South Comstock Mine
    Underground metal/non-metal · Mastermine Gold Corp · MSHA ID 2601711
    Abandoned
  62. Spring Valley
    Surface metal/non-metal · Geo-Nevada Inc. · MSHA ID 2601776
    Abandoned
  63. Trio Impact Crusher #1194
    Surface metal/non-metal · BJ Rees's Enterprise · MSHA ID 2602566
    Abandoned
  64. Yerington Mine
    Surface metal/non-metal · Anaconda Minerals Company · MSHA ID 2600085
    Abandoned
  65. Yerington Plant
    Surface metal/non-metal · Grant Smith Aggregates Inc · MSHA ID 2602346
    Abandoned
  66. Zeolite Project Pilot Plant
    Facility metal/non-metal · Anaconda Minerals Company · MSHA ID 2600835
    Abandoned

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

By source vocabularythe publishers' own terms
Feature type Features
Prospect Pit 4,857
Mine Shaft 599
Adit 582
Gravel Pit 52
Gravel Pit 44
Open Pit Mine 26
Borrow Pit 22
Tailings - Undifferentiated 22
Borrow Pit 19
Gravel/Borrow Pit - Undifferentiated 17
Open Pit Mine or Quarry 13
Tailings - Pond 13
Open Pit Mine 11
Mine Dump 10
Strip Mine 9
Air Shaft 3
Tailings - Dredge 2
Quarry 2
Placer Mine 1
Placer Mine 1
Sand Pit 1
Quarry 1
Mine 1
Quarry - Gypsum 1
Other counties in NevadaAll counties →
How to read these numbers

A USGS feature is a symbol on a historical topographic map, there when the map was surveyed; it may since have been sealed, reclaimed, built over or reopened as a working mine, and the map does not say which. An OSMRE row is a problem the abandoned mine land program tracks, not a mine. An MSHA mine is a registered operation whose operator reported abandonment, a record that starts in the 1970s. The three overlap and are never added together. The county is assigned from each feature's coordinates against the Census 2023 county boundaries. The full method is on the national page.

Sources
  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.