Pottsville conglomerate, at portal of Wabash Railroad tunnel in Big Savage mountain. Maryland. No Date.
Summary
Pottsville conglomerate, at portal of Wabash Railroad tunnel in Big Savage mountain. Massive beds at mouth in north wall. Frostburg quadrangle. Maryland. No date.
Summary
Pottsville conglomerate, at portal of Wabash Railroad tunnel in Big Savage mountain. Massive beds at mouth in north wall. Frostburg quadrangle. Maryland. No date.
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