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Abandoned mines › Puerto Rico
Abandoned mine inventory

Abandoned mines in Bayamón Municipio, Puerto Rico

Bayamón Municipio, Puerto Rico has 17 mine and prospect features on USGS topographic maps published 1952–1982. MSHA's register carries 42 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Bayamón 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)
17
Mine openings
0
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
42
0 features carry a name0 prospect pits2 quadrangle maps, published 1952–1982 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
    8 47.1%
  2. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    9 52.9%
MSHA-registered mines with status Abandoned42 on register
  1. Agregados 24
    Surface metal/non-metal · Dorado Quarry And Recycling Corp · MSHA ID 5400389
    Abandoned
  2. AGREGADOS LA SIERRA, CORP.
    Surface metal/non-metal · Agregados La Sierra Corp · MSHA ID 5400372
    Abandoned
  3. AGREGADOS MONTE CLARO, INC.
    Surface metal/non-metal · Metro Industries Inc · MSHA ID 5400271
    Abandoned
  4. Arena De La Montana
    Surface metal/non-metal · Arena De La Montana · MSHA ID 5400318
    Abandoned
  5. Arenero Elena
    Surface metal/non-metal · Agregados La Plata Inc · MSHA ID 5400188
    Abandoned
  6. Arenero Mani
    Surface metal/non-metal · Western Industry Park Inc · MSHA ID 5400190
    Abandoned
  7. Arenero Minilla
    Surface metal/non-metal · Paul Vidal · MSHA ID 5400211
    Abandoned
  8. ARENERO PR 866
    Surface metal/non-metal · Jose Nieves Cruz · MSHA ID 5400390
    Abandoned
  9. BAYAMON AGGREGATES
    Surface metal/non-metal · BAYAMON AGGREGATES & RECYCLING INC · MSHA ID 5400505
    Abandoned
  10. Bermudez Aggregates Incorporated
    Surface metal/non-metal · Bermudez Aggregates Inc · MSHA ID 5400336
    Abandoned
  11. CANTERA DE PUERTO RICO
    Surface metal/non-metal · Canteras De Puerto Rico Inc · MSHA ID 5400090
    Abandoned
  12. CANTERA EMILIA
    Surface metal/non-metal · Cantera Emilia · MSHA ID 5400422
    Abandoned
  13. Cantera Ferrer Quarry
    Surface metal/non-metal · Cantera Ferrer Inc · MSHA ID 5400092
    Abandoned
  14. CANTERA LOS CIPRESES, INC.
    Surface metal/non-metal · Cantera Los Cipreses Inc · MSHA ID 5400424
    Abandoned
  15. Cantera Rincon
    Surface metal/non-metal · Francisco Santiago · MSHA ID 5400453
    Abandoned
  16. CANTERA RIO CONSTRUCTION
    Surface metal/non-metal · Rio Construction Corp · MSHA ID 5400327
    Abandoned
  17. Cantera Rio Hondo
    Surface metal/non-metal · Rio Hondo Aggregates Inc · MSHA ID 5400136
    Abandoned
  18. CANTERA SALVADOR JIMENEZ
    Surface metal/non-metal · Empresas Salvador Jimenez · MSHA ID 5400363
    Abandoned
  19. CANTERA SANTA ROSA
    Surface metal/non-metal · Cidra Excavation S E · MSHA ID 5400371
    Abandoned
  20. CANTERA SUMIDERO
    Surface metal/non-metal · Luis A Rivera Crespo Inc · MSHA ID 5400200
    Abandoned
  21. Cantera Velez
    Surface metal/non-metal · Equipos & Constructora Rvd Inc · MSHA ID 5400293
    Abandoned
  22. Carraizo Aggregates, Inc
    Surface metal/non-metal · Carraizo Aggregates, Inc · MSHA ID 5400472
    Abandoned
  23. Cerro Tocal
    Surface metal/non-metal · Tocal Construction Inc · MSHA ID 5400332
    Abandoned
  24. Gravero La Plata
    Surface metal/non-metal · Gravero La Plata Inc · MSHA ID 5400304
    Abandoned
  25. Gravero Las Bombas
    Surface metal/non-metal · Inter-Services Sand-Gravel Inc · MSHA ID 5400263
    Abandoned
  26. Gravero Martino
    Surface metal/non-metal · La Marina Aggregates Inc · MSHA ID 5400229
    Abandoned
  27. Gravero Nevares
    Surface metal/non-metal · Colberg Nevares Enterprises Inc · MSHA ID 5400334
    Abandoned
  28. Gravero Pastrana
    Surface metal/non-metal · Osvaldo Pastrana · MSHA ID 5400249
    Abandoned
  29. GUARAGUAO SAND & GRAVEL, INC.
    Surface metal/non-metal · Guaraguao Sand & Gravel Inc · MSHA ID 5400369
    Abandoned
  30. Guaynabo Sand Pta. 1
    Surface metal/non-metal · Frenber Inc · MSHA ID 5400463
    Abandoned
  31. La 25
    Surface metal/non-metal · Puerto Rico Sand & Gravel Corp · MSHA ID 5400066
    Abandoned
  32. LOS COCOS MINE
    Surface metal/non-metal · Inversiones Del Toa Incorporated · MSHA ID 5400069
    Abandoned
  33. North Aggregates Inc.
    Surface metal/non-metal · North Aggregates Inc. · MSHA ID 5400471
    Abandoned
  34. Planta Candelaria
    Surface metal/non-metal · Puerto Rico Marble Industries Inc · MSHA ID 5400223
    Abandoned
  35. PR 53 PROJECT #709
    Surface metal/non-metal · Rexach Construction Company Inc · MSHA ID 5400391
    Abandoned
  36. PRODUCTOS DE AGREGADOS DELTURABO
    Surface metal/non-metal · Productos Agregados Del Turabo · MSHA ID 5400411
    Abandoned
  37. Proyecto Montehiedra-Humacao
    Surface metal/non-metal · Drillex Se · MSHA ID 5400340
    Abandoned
  38. Redondo Construction-Cantera Ramos
    Surface metal/non-metal · Redondo Construction Corp · MSHA ID 5400295
    Abandoned
  39. RJ Gravel
    Surface metal/non-metal · RJ Gravel · MSHA ID 5400315
    Abandoned
  40. Santa Rosa de Lima
    Surface metal/non-metal · Empresas Ortiz Brunet Inc · MSHA ID 5400311
    Abandoned
  41. Terrassa Sand & Gravel #1
    Surface metal/non-metal · Terrassa Sand & Gravel, Inc. · MSHA ID 5400081
    Abandoned
  42. VALLE DORADO DEVELOPMENT
    Surface metal/non-metal · Xl Enterprises Corp · MSHA ID 5400381
    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 9
Disturbed Surface 4
Open Pit Mine or 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.