Mining Incidents
Abandoned mine inventory

Abandoned mines in Horry County, South Carolina

Horry County, South Carolina has 20 mine and prospect features on USGS topographic maps published 1962–1994. MSHA's register carries 31 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Horry 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)
20
Mine openings
0
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
31
0 features carry a name0 prospect pits9 quadrangle maps, published 1962–1994 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
    4 20.0%
  2. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    16 80.0%
MSHA-registered mines with status Abandoned31 on register
  1. #9 Mining Company
    Surface metal/non-metal · #9 Mining Company · MSHA ID 3800615
    Abandoned
  2. ANDERSON MINE
    Surface metal/non-metal · Bear Bluff Sand Company Inc · MSHA ID 3800685
    Abandoned
  3. Bear Bluff Materials
    Surface metal/non-metal · Ashley Anderson · MSHA ID 3800636
    Abandoned
  4. Cannon Springs Mine
    Surface metal/non-metal · Weaver Company Inc · MSHA ID 3800674
    Abandoned
  5. Coburn Mine
    Surface metal/non-metal · Apac-Carolina Inc · MSHA ID 3800592
    Abandoned
  6. Defender Mining Incorporated
    Surface metal/non-metal · Defender Mining Inc · MSHA ID 3800607
    Abandoned
  7. E P Pitts Sand
    Surface metal/non-metal · Locher & Company Inc · MSHA ID 3800128
    Abandoned
  8. Graham Mine
    Surface metal/non-metal · Apac-Carolina Inc · MSHA ID 3800587
    Abandoned
  9. H R Coffin & Sons LLC
    Surface metal/non-metal · H R Coffin & Sons LLC · MSHA ID 3800718
    Abandoned
  10. Horry County Coquina Pit
    Surface metal/non-metal · Horry County Public Works · MSHA ID 3800616
    Abandoned
  11. Ingram Plant
    Surface metal/non-metal · American Materials Company · MSHA ID 3800751
    Abandoned
  12. JOSHUA PIT
    Surface metal/non-metal · Accounting & Business Consulting Corp · MSHA ID 3800677
    Abandoned
  13. LAKE RIDGE
    Surface metal/non-metal · Socastee Harvest Llc · MSHA ID 3800687
    Abandoned
  14. Little River #2 Mine
    Surface metal/non-metal · Asphalt Products Corp · MSHA ID 3800564
    Abandoned
  15. LIVINGSTON MINE
    Surface metal/non-metal · Livingston & Son Services Llc · MSHA ID 3800696
    Abandoned
  16. Mason Dixon Mine #1
    Surface metal/non-metal · Mason Dixon Company · MSHA ID 3800618
    Abandoned
  17. Mullet Creek Mine
    Surface metal/non-metal · C L Benton & Sons Inc · MSHA ID 3800619
    Abandoned
  18. Myrtle Beach Quarry
    Surface metal/non-metal · Southern Aggregates Company · MSHA ID 3800613
    Abandoned
  19. MYRTLE BEACH SALES YARD
    Facility metal/non-metal · Vulcan Construction Materials, L.P. · MSHA ID 3800648
    Abandoned
  20. MYRTLE BEACH STONE YARD
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 3800620
    Abandoned
  21. P MINING INC
    Surface metal/non-metal · P Mining Inc · MSHA ID 3800614
    Abandoned
  22. Peachtree Pit
    Surface metal/non-metal · C L Benton & Sons Inc · MSHA ID 3800650
    Abandoned
  23. Plant #11
    Surface metal/non-metal · Asphalt Products Corp · MSHA ID 3800572
    Abandoned
  24. Plant No 9
    Surface metal/non-metal · Asphalt Products Corp · MSHA ID 3800346
    Abandoned
  25. ROBERT O. COLLINS CO., INC.
    Surface metal/non-metal · Robert O Collins Company Inc · MSHA ID 3800678
    Abandoned
  26. Superior Sand LLC
    Surface metal/non-metal · Superior Sand LLC · MSHA ID 3800672
    Abandoned
  27. Wacca-Dee Materials Mine
    Surface metal/non-metal · Wacca-Dee Materials Co · MSHA ID 3800352
    Abandoned
  28. Waccamaw Mine
    Surface metal/non-metal · Waccamaw Clay Products Company Inc · MSHA ID 3800066
    Abandoned
  29. WEAVER MINE
    Surface metal/non-metal · L Dean Weaver Construction Company · MSHA ID 3800695
    Abandoned
  30. WEST MINE
    Surface metal/non-metal · Thompkins & Associates Inc · MSHA ID 3800610
    Abandoned
  31. WHITE & SONS MINING CO.
    Surface metal/non-metal · White & Sons Mining Company · MSHA ID 3800694
    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
Sand Pit 6
Sand Pit 4
Disturbed Surface 4
Borrow Pit 2
Gravel Pit 2
Gravel/Borrow Pit - Undifferentiated 1
Clay Pit 1
Other counties in South CarolinaAll 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.