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Abandoned mines › Puerto Rico
Abandoned mine inventory

Abandoned mines in Fajardo Municipio, Puerto Rico

Fajardo Municipio, Puerto Rico has 9 mine and prospect features on USGS topographic maps published 1945–1982. MSHA's register carries 30 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Fajardo 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)
9
Mine openings
0
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
30
0 features carry a name0 prospect pits2 quadrangle maps, published 1945–1982 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
    6 66.7%
  2. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    3 33.3%
MSHA-registered mines with status Abandoned30 on register
  1. Agregado Celada
    Surface metal/non-metal · Agregado Celada · MSHA ID 5400233
    Abandoned
  2. Arenero Clemente Fernandez
    Surface metal/non-metal · Clemente Fernandez · MSHA ID 5400248
    Abandoned
  3. Arenero San Miguel
    Surface metal/non-metal · C Nevarez Construction · MSHA ID 5400204
    Abandoned
  4. Bahia Beach
    Surface metal/non-metal · Terrassa Sand & Gravel Inc · MSHA ID 5400310
    Abandoned
  5. Cantera Cacao
    Surface metal/non-metal · Castaner Hermanos Inc · MSHA ID 5400101
    Abandoned
  6. Cantera Carolina Pta #3
    Surface metal/non-metal · Master Aggregates Toa Baja Corp · MSHA ID 5400374
    Abandoned
  7. Cantera Hipódromo
    Surface metal/non-metal · Construcciones Jose Carro S.E. · MSHA ID 5400298
    Abandoned
  8. Cantera Luguillo
    Surface metal/non-metal · Las Piedras Construction Corp · MSHA ID 5400226
    Abandoned
  9. Carbonato Calizo-Loiza
    Surface metal/non-metal · Adm De Servicios Y Desarrollo Agrpecuario · MSHA ID 5400181
    Abandoned
  10. CAROLINA SAND & GRAVEL
    Surface metal/non-metal · Carolina Sand & Gravel · MSHA ID 5400401
    Abandoned
  11. Central Drilling Services - Carolina
    Surface metal/non-metal · Central Drilling Services Inc · MSHA ID 5400454
    Abandoned
  12. Corredor Del Este
    Surface metal/non-metal · LPC&D Inc · MSHA ID 5400458
    Abandoned
  13. El Grano Amarillo
    Surface metal/non-metal · El Grano Amarillo Inc · MSHA ID 5400244
    Abandoned
  14. Fajardo Metropolis Quarry
    Surface metal/non-metal · Metropolis Quarry Inc · MSHA ID 5400349
    Abandoned
  15. Fajardo Sand & Gravel
    Surface metal/non-metal · Hiram Perez Inc · MSHA ID 5400048
    Abandoned
  16. G.J.R. CONSTRUCTION
    Surface metal/non-metal · Gjr Construction · MSHA ID 5400439
    Abandoned
  17. Gravero Arenas Del Rio
    Surface metal/non-metal · Arenas Del Rio Inc · MSHA ID 5400225
    Abandoned
  18. GRAVERO CANDELERO
    Surface metal/non-metal · Gravero Candelero · MSHA ID 5400426
    Abandoned
  19. Gravero Ingenio Corporation
    Surface metal/non-metal · Gravero Ingenio Corp · MSHA ID 5400307
    Abandoned
  20. Gravero Los Llanos
    Surface metal/non-metal · Mundo Sand & Gravel · MSHA ID 5400171
    Abandoned
  21. Gravero Morales
    Surface metal/non-metal · Morales Sand & Gravel Co · MSHA ID 5400207
    Abandoned
  22. Gravero Trujillo Bajo
    Surface metal/non-metal · Hiraldo Sand & Gravel Inc · MSHA ID 5400173
    Abandoned
  23. Gravero Ubarri
    Surface metal/non-metal · Gravero Ubarri · MSHA ID 5400234
    Abandoned
  24. Gurabo Aggregates
    Surface metal/non-metal · Gurabo Aggregates Inc · MSHA ID 5400261
    Abandoned
  25. Los Hermanos Sand & Gravel
    Surface metal/non-metal · Los Hermanos Sand & Gravel Inc · MSHA ID 5400312
    Abandoned
  26. P R Aggregates Pit
    Surface metal/non-metal · P R Aggregates Company Inc · MSHA ID 5400018
    Abandoned
  27. Pena Sand And Gravel
    Surface metal/non-metal · Pena Construction · MSHA ID 5400314
    Abandoned
  28. Playas De Puerto Rico
    Surface metal/non-metal · Joaquin Villamil · MSHA ID 5400279
    Abandoned
  29. PROYECTO LOS PAISAJES
    Surface metal/non-metal · Constructora Minillas Inc · MSHA ID 5400425
    Abandoned
  30. Trujillo Alto Sand & Gravel
    Surface metal/non-metal · Trujillo Alto Sand & Gravel Inc · MSHA ID 5400172
    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
Disturbed Surface 4
Quarry 3
Open Pit Mine or Quarry 2
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.