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Abandoned mines › Missouri
Abandoned mine inventory

Abandoned mines in Montgomery County, Missouri

Montgomery County, Missouri has 259 mine and prospect features on USGS topographic maps published 1940–1985; 1 of the features carry a name on the map. OSMRE's abandoned mine land inventory lists 1 problems in the county, 1 of them not yet reclaimed. MSHA's register carries 33 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Montgomery 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)
259
Mine openings
0
OSMRE problems unreclaimed
1
MSHA mines marked abandoned
33
1 features carry a name0 prospect pits14 quadrangle maps, published 1940–1985 1 OSMRE problems, 0 reclaimed 0 MSHA mines abandoned and sealed
What the features are
  1. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    13 5.0%
  2. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    246 94.6%
  3. Dumps, tailings, spoil and gob
    what mining left above ground
    1 0.4%
Named features on the maps1 named · from the USGS compilation
Name on map Feature
Laclede Christy 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.

OSMRE abandoned mine land problems1 on inventory
Problem area Problem Status
Monkey City P3 Gobs Reclamation Pending

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.

MSHA-registered mines with status Abandoned33 on register
  1. Allemann Pit
    Surface metal/non-metal · Missouri Minerals Processing Inc · MSHA ID 2301799
    Abandoned
  2. Beabout Mine #1
    Surface metal/non-metal · Beabout Mining Company · MSHA ID 2301552
    Abandoned
  3. Bluffton Quarry
    Surface metal/non-metal · Brown Quarries Inc · MSHA ID 2301752
    Abandoned
  4. Bluffton Quarry
    Surface metal/non-metal · Jeff-Cole Quarries Inc · MSHA ID 2302070
    Abandoned
  5. Bluffton Quarry
    Surface metal/non-metal · Bluffton Quarry · MSHA ID 2302172
    Abandoned
  6. Bluffton Quarry
    Surface metal/non-metal · Myco Management LLC · MSHA ID 2302460
    Abandoned
  7. Casper Pit
    Surface metal/non-metal · Missouri Minerals Processing Inc · MSHA ID 2301819
    Abandoned
  8. Casper Portable Plant
    Surface metal/non-metal · Capital Quarries Co Inc · MSHA ID 2302096
    Abandoned
  9. Cedar Valley Quarry Inc.
    Surface metal/non-metal · Cedar Valley Quarry Inc. · MSHA ID 2302292
    Abandoned
  10. Clare
    Surface metal/non-metal · Pits Dozing Inc · MSHA ID 2302395
    Abandoned
  11. CLARK JOHNSON MINE #1
    Surface metal/non-metal · Clark Johnson · MSHA ID 2301955
    Abandoned
  12. CLARK JOHNSON MINE #2
    Surface metal/non-metal · Clark Johnson · MSHA ID 2301960
    Abandoned
  13. Cobb Mine
    Surface metal/non-metal · Wellsville Fire Brick Company · MSHA ID 2301456
    Abandoned
  14. Ertman Pit
    Surface metal/non-metal · Hensley Mining Company Inc · MSHA ID 2301762
    Abandoned
  15. Gravel Plant
    Surface metal/non-metal · Hermann Sand & Gravel, Inc. · MSHA ID 2302331
    Abandoned
  16. HESTERBERG STRIPPING CREW #1
    Surface metal/non-metal · O H Hesterberg & Sons Inc · MSHA ID 2302022
    Abandoned
  17. HESTERBERG STRIPPING CREW #2
    Surface metal/non-metal · O H Hesterberg & Sons Inc · MSHA ID 2302024
    Abandoned
  18. High Hill Quarry
    Surface metal/non-metal · Beck Materials Company · MSHA ID 2302027
    Abandoned
  19. High Hill Quarry
    Surface metal/non-metal · BMC Stone, LLC · MSHA ID 2302518
    Abandoned
  20. J & L REDI MIX INC
    Surface metal/non-metal · J & L Redi Mix Inc · MSHA ID 2302050
    Abandoned
  21. K-Deeker
    Surface metal/non-metal · Deeker Mining Inc · MSHA ID 2301048
    Abandoned
  22. Mathews Pit
    Surface metal/non-metal · Missouri Minerals Processing Inc · MSHA ID 2301872
    Abandoned
  23. Middletown - Owens
    Surface metal/non-metal · BT Minerals LLC · MSHA ID 2302545
    Abandoned
  24. Montgomery Clay Mine
    Surface metal/non-metal · Harbison-Walker Refractories U S · MSHA ID 2300382
    Abandoned
  25. Owen's Pit
    Surface metal/non-metal · Larry Wolfmeier Trucking LLC · MSHA ID 2302414
    Abandoned
  26. Pace Construction Danville Quarry
    Surface metal/non-metal · Pace Construction Company LLC · MSHA ID 2300140
    Abandoned
  27. Plant #1
    Surface metal/non-metal · Rhineland Grain Company · MSHA ID 2302134
    Abandoned
  28. Thomas Mine #4
    Surface metal/non-metal · Thomas Excavating L L C · MSHA ID 2302174
    Abandoned
  29. Thomas Mine 6
    Surface metal/non-metal · Thomas Excavating · MSHA ID 2302415
    Abandoned
  30. Walton Pit
    Surface metal/non-metal · Carter Trucking Company · MSHA ID 2301804
    Abandoned
  31. Weeks Flint Clay Strip Mine
    Surface metal/non-metal · Hensley Mining Company Inc · MSHA ID 2301165
    Abandoned
  32. Wellsville #1
    Surface metal/non-metal · Forest Johnson Clay Company · MSHA ID 2300365
    Abandoned
  33. Wellsville Clay Refractories Mill
    Facility metal/non-metal · Wellsville Fire Brick Company · MSHA ID 2301455
    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
Clay Pit 212
Quarry 21
Open Pit Mine or Quarry 12
Clay Pit 5
Quarry 5
Gravel Pit 2
Sand Pit 1
Open Pit Mine 1
P3 Gobs 1
Other counties in MissouriAll 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.