We drove through this tunnel on the North Shore twice and didn’t get scared but Karolyn was afraid to go down the Alpine Slide at Lutsen!
Silver Creek Cliff Tunnel, Lake Superior’s North Shore. Silver Creek Cliff Tunnel is located three miles north of Two Harbors, Minnesota. The 1340 foot-long mined tunnel is the second of its kind located on Minn. Hwy. 61. Approximately 500,000 cubic yards of rock were excavated and removed from the project allowing for finished tunnel dimension of 48 feet wide by 32 feet high.