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Abandoned mines › Puerto Rico
Abandoned mine inventory

Abandoned mines in Guayama Municipio, Puerto Rico

Guayama Municipio, Puerto Rico has 4 mine and prospect features on USGS topographic maps published 1970. MSHA's register carries 24 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Guayama Municipio, 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)
4
Mine openings
0
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
24
0 features carry a name0 prospect pits2 quadrangle maps, published 1970 0 MSHA mines abandoned and sealed
What the features are
  1. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    4 100.0%
MSHA-registered mines with status Abandoned24 on register
  1. AGREGADOS BORINQUEN
    Surface metal/non-metal · Agregados Borinquen Inc · MSHA ID 5400430
    Abandoned
  2. Arenerd Del Turabo
    Surface metal/non-metal · Best Contracting Corp · MSHA ID 5400232
    Abandoned
  3. Arenero Comerio
    Surface metal/non-metal · Gravero Rodriguez · MSHA ID 5400397
    Abandoned
  4. ARENERO JAGUAL
    Surface metal/non-metal · Rodriguez De La Torre Inc · MSHA ID 5400429
    Abandoned
  5. Cantera Beatriz
    Surface metal/non-metal · Ramos Baqueros Y Ramos Inc · MSHA ID 5400144
    Abandoned
  6. Cantera Caguas Pta 5
    Surface metal/non-metal · Master Aggregates Toa Baja Corp · MSHA ID 5400275
    Abandoned
  7. Cantera Cayey
    Surface metal/non-metal · Cantera Cayey Inc · MSHA ID 5400146
    Abandoned
  8. CANTERA CENTRAL
    Surface metal/non-metal · Cantera Central Inc · MSHA ID 5400414
    Abandoned
  9. Cantera De Jesus
    Surface metal/non-metal · Super Asphalt Pavement, Corp. · MSHA ID 5400438
    Abandoned
  10. Cantera Mendez
    Surface metal/non-metal · Julio Mendez Velazquez · MSHA ID 5400111
    Abandoned
  11. Cantera Yaurel
    Surface metal/non-metal · Cantera Hermanos Aponte Inc · MSHA ID 5400205
    Abandoned
  12. Desarolladores de Agregados
    Surface metal/non-metal · Desarolladores de Agregados · MSHA ID 5400452
    Abandoned
  13. DOCORI SAND & GRAVEL
    Surface metal/non-metal · Docori Sand & Gravel · MSHA ID 5400413
    Abandoned
  14. Fintec 1107
    Surface metal/non-metal · RG Engineering, Inc. · MSHA ID 5400495
    Abandoned
  15. Gravero de San Lorenzo, LLC
    Surface metal/non-metal · Gravero de San Lorenzo, LLC · MSHA ID 5400415
    Abandoned
  16. GRAVERO LAS 14
    Surface metal/non-metal · GRAVERO LAS 14, INC · MSHA ID 5400491
    Abandoned
  17. GRAVERO PATILLAS
    Surface metal/non-metal · Jjj Constructoresy Agregadosinc · MSHA ID 5400370
    Abandoned
  18. Hard Rock Quarry No 2
    Surface metal/non-metal · Hard Rock Quarry · MSHA ID 5400465
    Abandoned
  19. Industrias Areneras B & M
    Surface metal/non-metal · Industrias Areneras B & M · MSHA ID 5400376
    Abandoned
  20. Marmoles Vassco Inc Quarry
    Surface metal/non-metal · Marmoles Vassco Inc · MSHA ID 5400351
    Abandoned
  21. Mobil Crusher - Guayama
    Surface metal/non-metal · Mobil Crusher Inc · MSHA ID 5400337
    Abandoned
  22. PROJ DEL VALLE GRP GUVYANA
    Surface metal/non-metal · Drillex Se · MSHA ID 5400420
    Abandoned
  23. SAN LORENZO SAND & GRAVEL COMPANY
    Surface metal/non-metal · SAN LORENZO SAND & GRAVEL COMPANY · MSHA ID 5400050
    Abandoned
  24. Terrassa Sand & Gravel Inc
    Surface metal/non-metal · Terrassa Sand & Gravel Inc · MSHA ID 5400272
    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
Quarry 4
Other counties in Puerto RicoAll 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.