Browse mineral resources

Maryland Mine

Past Producer • Gold

Unnamed Schist Quarry Near Cabin John Park

Past Producer • Stone, Dimension

Bethesda Mine

Past Producer • Gold

Harrison Mine

Past Producer • Gold

Sawyer Mine

Past Producer • Gold

Irma Mine

Past Producer • Gold

Lynch Mine

Past Producer • Gold

Rock Run Gold Placers

Occurrence • Gold

Tri-State Stone Company Quarry

Producer • Stone, Dimension

Stoneyhurst Quarry Number 3

Producer • Stone, Dimension

Rockville Crushed Stone Co. Quarry

Producer • Stone, Crushed/Broken

Mcceney Pit and Plant

Past Producer • Sand and Gravel, Construction

Sawyer Mine & 5 Additional Mines

Past Producer • Gold

Bethesda Mine

Past Producer • Gold

Huddleston Mine

Past Producer • Gold

Bogley Mine

Past Producer • Gold

Montgomery Mine

Past Producer • Gold

Stonyhurst Quarries

Past Producer • Stone

Unnamed, Near Brookville

Past Producer • Manganese

Etchison Mine & Lyde Griffith Property

Past Producer • Chromium

Stoneyhurst Quarry Number 1

Producer • Stone, Dimension

Toms Run Quarry

Producer • Silica

B. Giancola Quarry

Producer • Stone, Crushed/Broken

Unnamed Schist Quarry

Past Producer • Stone, Dimension

Lynch Mine

Past Producer • Gold

Eagle Mine

Past Producer • Gold

Miller Mine

Past Producer • Gold

Bogley Mine

Past Producer • Gold

Harrison Mine

Past Producer • Gold

Earth Products Company Quarries

Past Producer • Feldspar

Ellicott Mine

Past Producer • Gold

Sawyer Mine

Past Producer • Gold

Tri-State Stone Co. Quarry

Producer • Stone, Dimension

Rock Run Gold Placers

Past Producer • Gold

Toms Run Quarry

Past Producer • Stone, Dimension

Stoneyhurst Quarry Number 1

Past Producer • Stone, Dimension

Watson Mine

Past Producer • Gold

Maryland Mine

Past Producer • Gold

Huddleston Mine

Past Producer • Gold

B Giancola Quarry

Producer • Mica

Stonyhurst Quarries

Producer • Stone

Etchison Mine

Past Producer •

Gilmore Mine

Past Producer • Mica

Brookville Mine

Past Producer • Manganese

Rockville Crushed Stone

Producer • Stone, Crushed/Broken

Rockville Plant

Past Producer • Stone, Crushed/Broken

Montgomery Mine

Past Producer • Gold

Ford Mine

Past Producer • Gold

Stoneyhurst Quarry Number 3

Past Producer • Stone, Dimension

Mcceney Pit

Past Producer • Sand and Gravel, Construction

Earth Products Company Mines

Past Producer • Feldspar

Griffith Mine

Past Producer •

Bethesda Mine

Past Producer • Gold