"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). Including the branch lines, there were a total of 64 tunnels on the Milwaukee Road, of which 8 remain in use. The CMSP&P was merged into the Soo Line Railroad at the end of 1985." Source: http://wikimapia.org
" onclick="window.open(this.href);return false; Tunnel #1 in Wisconsin, Red Tunnel #2 was near mile 1,398, about 1,154 miles from
tunnel #1 in Wisconsin. Rest West of there.
List of tunnels here: http://cs.trains.com/trn/f/507/t/44086.aspx
" onclick="window.open(this.href);return false;