CMSP&P Deer Creek (1) Tunnel 29

The Chicago, Milwaukee, St. Paul and Pacific Railroad stretched from Chicago to Seattle. Their mainline was 2,200 miles long and included 51 tunnels. These were numbered from 1 in Wisconsin to 52 in Washington State (38 and 39 were never built, while 16.5 was added later). The CMSP&P was merged into the Soo Line Railroad at the end of 1985.