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Abandoned mines › Puerto Rico
Abandoned mine inventory

Abandoned mines in Ponce Municipio, Puerto Rico

Ponce Municipio, Puerto Rico has 23 mine and prospect features on USGS topographic maps published 1958–1982. 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 Ponce 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)
23
Mine openings
0
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
24
0 features carry a name0 prospect pits4 quadrangle maps, published 1958–1982 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
    2 8.7%
  2. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    21 91.3%
MSHA-registered mines with status Abandoned24 on register
  1. AC 100024 PR 10
    Surface metal/non-metal · Jusor Corp · MSHA ID 5400385
    Abandoned
  2. Agregados De Jayuya, Inc.
    Surface metal/non-metal · Agregados De Jayuya, Inc. · MSHA ID 5400259
    Abandoned
  3. Agregados Rio Canas
    Surface metal/non-metal · Agregados Rio Canas Inc · MSHA ID 5400335
    Abandoned
  4. ARENAS MATILDE
    Surface metal/non-metal · Arenas Matilde Inc · MSHA ID 5400333
    Abandoned
  5. Arenero Jayuya
    Surface metal/non-metal · Arenas De Jayuya Inc · MSHA ID 5400237
    Abandoned
  6. Arenero La Alianza
    Surface metal/non-metal · Agro Power Corp · MSHA ID 5400469
    Abandoned
  7. Arenero Los Angeles Inc
    Surface metal/non-metal · Arenero Santa Barbara Inc · MSHA ID 5400366
    Abandoned
  8. Arenero Rio Grande
    Surface metal/non-metal · Heriberto Rivera Gonzalez · MSHA ID 5400301
    Abandoned
  9. Bloquera Real Anon Inc
    Surface metal/non-metal · Bloquera Real Anon, Inc · MSHA ID 5400286
    Abandoned
  10. CANTERA ANGOLA
    Surface metal/non-metal · ETR Group, PSC · MSHA ID 5400251
    Abandoned
  11. CANTERA CANAS
    Surface metal/non-metal · Construcciones Jose Carro S.E. · MSHA ID 5400240
    Abandoned
  12. Cantera El Tuque
    Surface metal/non-metal · Cantera El Tuque, Inc. · MSHA ID 5400483
    Abandoned
  13. Cantera La Rita
    Surface metal/non-metal · Consorcio Las Lomas · MSHA ID 5400466
    Abandoned
  14. CANTERA LA RITA
    Surface metal/non-metal · Empresas Tito Castro Inc · MSHA ID 5400199
    Abandoned
  15. Cantera Marueno
    Surface metal/non-metal · ETR Group, PSC · MSHA ID 5400227
    Abandoned
  16. Cerrillos Dam Project
    Surface metal/non-metal · Dillingham Construction International Inc · MSHA ID 5400289
    Abandoned
  17. Community Aggregates Incorporated
    Surface metal/non-metal · Community Aggregates Inc · MSHA ID 5400359
    Abandoned
  18. Florida Lime
    Facility metal/non-metal · Cemex Puerto Rico · MSHA ID 5400194
    Abandoned
  19. Gravera Jacaguas
    Surface metal/non-metal · Commonwealth & American Sand & Gravel · MSHA ID 5400152
    Abandoned
  20. Gravero Orama
    Surface metal/non-metal · Gravero Orama Inc · MSHA ID 5400213
    Abandoned
  21. Gravero Patillas
    Surface metal/non-metal · Terrassa Sand & Gravel Inc · MSHA ID 5400164
    Abandoned
  22. P R Concrete
    Surface metal/non-metal · P R Concrete Products Inc · MSHA ID 5400246
    Abandoned
  23. P R Concrete Planta Talco
    Surface metal/non-metal · P R Concrete Products Inc · MSHA ID 5400276
    Abandoned
  24. Portugue's Dam
    Surface metal/non-metal · Construcciones Jose Carro S E · MSHA ID 5400481
    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 11
Quarry 7
Disturbed Surface 2
Sand Pit 2
Sand Pit 1
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.