CMSP&P Watts / Sorento Tunnel 41

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.
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