The Chicago, Milwaukee, St. Paul and Pacific Railroad, "The Milwaukee Road" (MILW), began it's existence in 1849 at it's namesake city, Milwaukee, WI. By the turn of the 20th century they had amassed a vast network of trackage in the midwest and eventually extend their network to over 10,000 miles and to Puget Sound, joining GN, NP, and UP. Unfortunately, MILW was the last midwest railroad to reach the Pacific and they ended up with a less productive route, even though it was the shortest route. The creation of BN in 1970 started the failure spiral of the MILW. MILW abandoned the Pacific route in the early 1980's and the remaining 3500 miles was absorbed by the Soo Line in 1986.

MILW 36A at Deer Lodge, MT, 9/13/23.

MILW E57B at Harlowton, MT, 7/16/02.

MILW caboose 32097 at Alberton, MT, 7/14/04.

MILW 101-A at Cresco, IA, 4/10/09. This was the first FP7 locomotive, built in Nov 1951, and the only preserved FP7.

 MILW "Little Joe" E70 at Deer Lodge, MT, 9/13/23. This locomotive was 1 of 20 locomotives built in 1947/48 for the Soviet Union's Trans-Siberian Railway. However, none were ever exported to the Soviets. Five went to Brazil, 3 to the Chicago, South Shore & South Bend RR, and 12 to MILW. MILW assigned them to the electrified division from Harlowton, MT, to Avery, ID, where they ran from from 1950 to 1974. Two other Little Joe's have been preserved.