Abandoned Mines in Puerto Rico
Abandoned Mining in Puerto Rico
Federal databases record 443 abandoned, sealed, and historically closed mine locations in Puerto Rico. These include mines officially abandoned under MSHA oversight and past producers documented in the USGS Mineral Resources Data System. Abandoned mines are a legacy of centuries of mineral extraction and can pose ongoing environmental and safety concerns for nearby communities.
Safety Warning: Abandoned mines are extremely dangerous. Hazards include cave-ins, toxic gases, flooded shafts, unstable ground, and hidden vertical drops. Never enter an abandoned mine. Many are on private property. If you discover an unsecured abandoned mine, report it to your state mining agency.
Top Counties
Abandoned Mine Sites
| Mine | County | Commodity | Status | Source |
|---|---|---|---|---|
| Ac-020601 | Cayey | Dimension Limestone | Abandoned | MSHA |
| Agregados Borinquen | Caguas | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Arenero De Rio Abajo | Arecibo | Construction Sand and Gravel | Abandoned | MSHA |
| Agregados 24 | Bayamon | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Agregados De Jayuya, Inc. | Ponce | Construction Sand and Gravel | Abandoned | MSHA |
| Agregados Piedra Blanca Inc | Arecibo | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Agregados Rc | Arecibo | Dimension Limestone | Abandoned | MSHA |
| Agregados Villa Linda | Aguadilla | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Aguadilla Aggregates | Aguadilla | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Aguadilla Rocks & Gravel | Aguadilla | Dimension Limestone | Abandoned | MSHA |
| Arecibo Aggregates | Arecibo | Construction Sand and Gravel | Abandoned | MSHA |
| Arecibo Industrial Park Inc. | Arecibo | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Arenal | Arecibo | Silica | Past Producer | MRDS |
| Arenas Yabucoa | Humacao | Construction Sand and Gravel | Abandoned | MSHA |
| Arenero 414 | Aguadilla | Sand, Common | Abandoned | MSHA |
| Arenero De La Montana | Manati | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Arenero Humacao | Humacao | Sand, Industrial NEC | Abandoned | MSHA |
| Arenero La Alianza | Ponce | Construction Sand and Gravel | Abandoned | MSHA |
| Arenero La Cima | Arecibo | Sand, Common | Abandoned | MSHA |
| Arenero Los Angeles Inc | Ponce | Sand, Common | Abandoned | MSHA |
| Arenero Vazquez | Humacao | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Bayamon Aggregates | Bayamon | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Beatriz | Caguas | Iron, Zinc, Copper | Past Producer | MRDS |
| Bloquera Real Anon Inc | Ponce | Construction Sand and Gravel | Abandoned | MSHA |
| Borinquen Sand Mfg. | Aguadilla | Construction Sand and Gravel | Abandoned | MSHA |
| Cab Agregados | Aguadilla | Construction Sand and Gravel | Abandoned | MSHA |
| Cantera Angola | Ponce | Construction Sand and Gravel | Abandoned | MSHA |
| Cantera Avila | Arecibo | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera Canas | Ponce | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera Central | Guayama | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera Cueva | Aguadilla | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera El Yunque | Rio Grande | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera Green | Arecibo | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera Monsegur | Yauco | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera Rio Construction | Bayamon | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantero Martino | Santa Isabel | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cordeco North-West | Aguadilla | Construction Sand and Gravel | Abandoned | MSHA |
| Cantera Ballaja | Mayaguez | Stone, Crushed/Broken | Past Producer | MRDS |
| Cantera Barranquita | Guayama | Stone, Crushed/Broken | Past Producer | MRDS |
| Cantera Beatriz | Guayama | Stone, Crushed/Broken | Past Producer | MRDS |
| Cantera Caguas Pta 5 | Guayama | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera Carolina Pta #3 | Fajardo | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera Carro No 2 | Mayaquez | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera Collores | Ponce | Stone, Crushed/Broken | Past Producer | MRDS |
| Cantera De Jesus | Guayama | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera Dorado Pta 1 | Manati | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera El Tuque | Ponce | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera El Zorro | Quebradillas | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera Espinosa Ii | Manati | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera Hacienda San Martin | Dorado | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera Hip�dromo | Fajardo | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera J. R. Contractors | Isabela | Dimension Limestone | Abandoned | MSHA |
| Cantera La Rita | Ponce | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera Las Carolinas | Guayama | Stone, Crushed/Broken | Past Producer | MRDS |
| Cantera Marueno | Ponce | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera Matoc | San Juan | Stone, Crushed/Broken | Past Producer | MRDS |
| Cantera Naranjo | Santa Isabel | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera Perez | Humacao | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera Rincon | Bayamon | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera Rivera | Manati | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cantera Rivera | Santa Isabel | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Cantera San Isidro | Humacao | Stone, Crushed/Broken | Past Producer | MRDS |
| Cantera Santana | Arecibo | Stone, Crushed/Broken | Past Producer | MRDS |
| Cantera Yavrel | Guayama | Stone, Crushed/Broken | Past Producer | MRDS |
| Cantera Zaino | Manati | Construction Sand and Gravel | Abandoned | MSHA |
| Cantera Del Este Llc | Humacao | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Canteras Aguadilla - 1 | Limestone, Ultra Pure | Past Producer | MRDS | |
| Canteras Aguadilla - 2 | Limestone, Ultra Pure | Past Producer | MRDS | |
| Carbonato Calizo-Ciales | Manati | Crushed, Broken Limestone NEC | Abandoned | MSHA |
| Caribe Sand | Manati | Sand, Common | Abandoned | MSHA |
| Carraizo Aggregates, Inc | Bayamon | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cascajo | Stone, Crushed/Broken | Past Producer | MRDS | |
| Central Drilling Services - Carolina | Fajardo | Lime | Abandoned | MSHA |
| Cerro De Las Cuevas Caves | Phosphorus-Phosphates | Past Producer | MRDS | |
| Coamo Sand & Gravel Inc | Coamo | Construction Sand and Gravel | Abandoned | MSHA |
| Constructora Jc | Jayuya | Sand, Industrial NEC | Abandoned | MSHA |
| Cordeco L.l. | Aguadilla | Lime | Abandoned | MSHA |
| Corredor Del Este | Fajardo | Crushed, Broken Stone NEC | Abandoned | MSHA |
| Cueva Al Lado Del Faro | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Caigo O No Caigo | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva De Dona Gena Arriba | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva De Espinal | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva De Frio | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva De La Casa De Erickson | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva De La Cucaracha | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva De La Esperanza | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva De La Playa Brava | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva De Las Losetas | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva De Los Pajaros | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Del Basurero | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Del Capitan | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Del Diamante | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Del Esquelito | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Del Limon | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Del Lirio | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Del Mangle | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Del Norte | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Del Rifle | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva Del Toro | Phosphorus-Phosphates | Past Producer | MRDS | |
| Cueva El Gato | Phosphorus-Phosphates | Past Producer | MRDS |
Showing 100 of 443 abandoned mine sites. Browse by county above for complete listings.
All mines in Puerto Rico → · Search abandoned mines near you →