The Logans Ferry Mine Tunnel consists of a pair of abandoned coal tunnels under the Allegheny River between Plum and Springdale, Pennsylvania in the United States.
The Logans Ferry Mine Tunnel consists of a pair of abandoned coal tunnels under the Allegheny River between Plum and Springdale, Pennsylvania in the United States. (en)
The Logans Ferry Mine Tunnel consists of a pair of abandoned coal tunnels under the Allegheny River between Plum and Springdale, Pennsylvania in the United States. (en)