 |
Grand Trunk Tunnel Under St. Clair River, Port Huron, Mich., To Sarnia, Canada. |
 |
Motor In Center Of Tunnel, Port Huron, Mich. |
 |
Motors Entering St. Clair Tunnel, Port Huron, Mich. |
 |
St. Clair Tunnel |
 |
St. Clair Tunnel, Port Huron, Mich. |
 |
St. Clair Tunnel, Port Huron, Mich. |
 |
St. Clair Tunnel, Sarnia, Canada. The Longest Submarine Tunnel In The World |
 |
St. Clair Tunnel, Sarnia, Ont. |