Mining Incidents
Search Operators Mines Alerts Research Controllers Fatalgrams About
Countries
Peru Chile
English Español
Abandoned mines › Texas
Abandoned mine inventory

Abandoned mines in Bexar County, Texas

Bexar County, Texas has 392 mine and prospect features on USGS topographic maps published 1953–1993; 3 of the features carry a name on the map. OSMRE's abandoned mine land inventory lists 5 problems in the county, 1 of them not yet reclaimed. MSHA's register carries 53 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Bexar 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)
392
Mine openings
0
OSMRE problems unreclaimed
1
MSHA mines marked abandoned
53
3 features carry a name0 prospect pits25 quadrangle maps, published 1953–1993 5 OSMRE problems, 4 reclaimed 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
    2 0.5%
  2. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    19 4.8%
  3. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    373 94.0%
  4. Other reclamation problems
    highwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
    3 0.8%
Named features on the maps3 named · from the USGS compilation
Name on map Feature
Beckmann Rock Quarry Quarry - Rock area
Shady Oak Sandpits Sand and Gravel Pit area
Shady Oak Sandpits Sand Pit 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 problems5 on inventory
Problem area Problem Status
Bexar - Lopez P3 Other Reclamation Pending
Somerset P1 Subsidence Reclamation Completed
Somerset P1 Vertical Openings Reclamation Completed
Tx - Bexar - Fea P1 Portals Reclamation Completed
Tx - Bexar - Fea P1 Subsidence Reclamation Completed

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 Abandoned53 on register
  1. 1518 Pit
    Surface metal/non-metal · Marshall Construction Company Inc · MSHA ID 4103424
    Abandoned
  2. 1604 EAST PLANT
    Surface metal/non-metal · Capitol Aggregates Ltd · MSHA ID 4103357
    Abandoned
  3. 1604 Plant
    Surface metal/non-metal · South Texas Aggregates Inc · MSHA ID 4103452
    Abandoned
  4. 1604 WEST PLANT
    Surface metal/non-metal · Capitol Aggregates Ltd · MSHA ID 4103011
    Abandoned
  5. 211
    Surface metal/non-metal · Martin Marietta Materials Southwest, Inc · MSHA ID 4104704
    Abandoned
  6. Alamo Cement Plant
    Facility metal/non-metal · Alamo Cement Company Ltd · MSHA ID 4100057
    Abandoned
  7. Allied Concrete And Gravel Co Pit A
    Surface metal/non-metal · P S L Inc · MSHA ID 4101127
    Abandoned
  8. Apache Materials
    Surface metal/non-metal · Apache Ready Mix Inc · MSHA ID 4101032
    Abandoned
  9. Arrow Materials Pit
    Surface metal/non-metal · Arrow Materials Inc · MSHA ID 4103294
    Abandoned
  10. BHH Sand and Gravel
    Surface metal/non-metal · Pesado Construction · MSHA ID 4105312
    Abandoned
  11. C & K Materials Company Incorporated
    Surface metal/non-metal · C & K Materials Company Inc · MSHA ID 4103331
    Abandoned
  12. Capitol Cement Quarry
    Surface metal/non-metal · Capitol Aggregates Inc · MSHA ID 4102945
    Abandoned
  13. Custom Crushed Stone #1
    Surface metal/non-metal · Custom Crushed Stone Inc · MSHA ID 4104616
    Abandoned
  14. De Los Santos Sand Pit
    Surface metal/non-metal · De Los Santos Sand Company · MSHA ID 4101623
    Abandoned
  15. Dos Rios Pit
    Surface metal/non-metal · Olmos Equipment Company Inc · MSHA ID 4103634
    Abandoned
  16. Freddie Harris Sand & Clay
    Surface metal/non-metal · Freddie E Harris Sand & Clay · MSHA ID 4101886
    Abandoned
  17. G M Materials
    Surface metal/non-metal · G M Materials · MSHA ID 4103257
    Abandoned
  18. Garza Sand Pit Incorporated Of Texas
    Surface metal/non-metal · Garza Sand Pit Inc Of Texas · MSHA ID 4103148
    Abandoned
  19. Haecker Pit
    Surface metal/non-metal · Eddie Newman Construction Company · MSHA ID 4103415
    Abandoned
  20. Helotes
    Surface metal/non-metal · Martin Marietta Materials Southwest, Inc · MSHA ID 4103137
    Abandoned
  21. Highway 16 Plant
    Surface metal/non-metal · Pyramid Products & Services Inc · MSHA ID 4104722
    Abandoned
  22. Highway 90 Plant
    Surface metal/non-metal · Redland Worth Corp · MSHA ID 4101341
    Abandoned
  23. Hwy 16 Sand Plant
    Surface metal/non-metal · Vulcan Materials Company · MSHA ID 4103840
    Abandoned
  24. JUDSON ROAD PLANT
    Facility metal/non-metal · South Texas Perlite Company · MSHA ID 4103111
    Abandoned
  25. Kite Pit
    Surface metal/non-metal · Espey Silica Sand Company · MSHA ID 4101622
    Abandoned
  26. L & W Materials
    Surface metal/non-metal · L & W Materials · MSHA ID 4103498
    Abandoned
  27. Lightweight Plant And Pit
    Surface metal/non-metal · Barrett Industries · MSHA ID 4102994
    Abandoned
  28. LIME PLANT
    Facility metal/non-metal · San Antonio Lime Inc · MSHA ID 4100996
    Abandoned
  29. Lion Cave Materials 281S
    Surface metal/non-metal · Lion Cave Materials · MSHA ID 4105568
    Abandoned
  30. Longhorn Cement Division
    Surface metal/non-metal · Kaiser Cement Corp · MSHA ID 4100038
    Abandoned
  31. Metro Sand & Gravel
    Surface metal/non-metal · Metro Materials Company · MSHA ID 4101518
    Abandoned
  32. MIDWESTERN QUARRY
    Surface metal/non-metal · Martin Marietta Materials Southwest Ltd · MSHA ID 4102585
    Abandoned
  33. Mobil Crusher No 32505
    Surface metal/non-metal · South Texas Construction Company · MSHA ID 4102930
    Abandoned
  34. Moreno'S Trucking
    Surface metal/non-metal · Moreno'S Trucking Service · MSHA ID 4103045
    Abandoned
  35. Moul Pit
    Surface metal/non-metal · U S Brick · MSHA ID 4100245
    Abandoned
  36. Pioneer Aggregates Quarry
    Surface metal/non-metal · Pioneer Concrete Of Texas Inc · MSHA ID 4102541
    Abandoned
  37. PORTABLE ROCK CRUSHER #1
    Surface metal/non-metal · H L Zumwalt Construction Inc · MSHA ID 4104266
    Abandoned
  38. River City Ready Mix, Inc.
    Surface metal/non-metal · River City Ready Mix, Inc. · MSHA ID 4104139
    Abandoned
  39. Salado Creek Dam Site
    Surface metal/non-metal · Cloud Corp · MSHA ID 4102581
    Abandoned
  40. SAN ANTONIO PUGMILL
    Facility metal/non-metal · H B Zachry Company · MSHA ID 4103841
    Abandoned
  41. SAND PIT #1
    Surface metal/non-metal · Oak Island Sand Products · MSHA ID 4103467
    Abandoned
  42. Schaefer Road Pit
    Surface metal/non-metal · Blanco Materials · MSHA ID 4103358
    Abandoned
  43. Schoenfeld Sand & Gravel Incorporated
    Surface metal/non-metal · Schoenfeld Sand & Gravel Inc · MSHA ID 4102838
    Abandoned
  44. Shaefer Road Plant
    Surface metal/non-metal · Capitol Aggregates Inc · MSHA ID 4102744
    Abandoned
  45. Star Pit & Plant
    Surface metal/non-metal · Freddie E. Harris, Inc. · MSHA ID 4103153
    Abandoned
  46. Stone Oak Subdivision
    Facility metal/non-metal · Allen Keller Company · MSHA ID 4103208
    Abandoned
  47. Timms Materials
    Surface metal/non-metal · Timms Trucking · MSHA ID 4103538
    Abandoned
  48. Toltec Construction Incorporated
    Surface metal/non-metal · Toltec Construction Inc · MSHA ID 4103158
    Abandoned
  49. Volner Ranch Sand and Gravel
    Surface metal/non-metal · CSA Materials, Inc · MSHA ID 4105390
    Abandoned
  50. WAGNER MATERIALS
    Surface metal/non-metal · Wagner Materials · MSHA ID 4103895
    Abandoned
  51. Wagner Pit
    Surface metal/non-metal · Cibolo Materials · MSHA ID 4103830
    Abandoned
  52. West Side Quarry & Plant
    Surface metal/non-metal · Redland Worth Corp · MSHA ID 4101336
    Abandoned
  53. ZACHRY CONSTRUCTION CORP.
    Surface metal/non-metal · Zachry Construction Corp · MSHA ID 4104107
    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
Gravel Pit 147
Gravel Pit 137
Gravel/Borrow Pit - Undifferentiated 20
Sand Pit 16
Disturbed Surface 15
Quarry 15
Borrow Pit 8
Borrow Pit 7
Sand Pit 6
Gravel/Borrow Pit - Undifferentiated 5
Sand and Gravel Pit 4
Open Pit Mine 4
Quarry - Rock 3
Clay Pit 3
Clay Pit 2
P1 Subsidence 2
P1 Portals 1
P1 Vertical Openings 1
P3 Other 1
Other counties in TexasAll 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.