Question: What was the eastern terminus of the historical railroad that ran 98.77 miles through towns including a Middlesex County town with a 2010 census population of 17659?
Sentence (from "Harlowton, Montana"): Harlowton was founded in 1900 as a station stop on the Montana Railroad, a predecessor to the Milwaukee, and was named for Richard A. Harlow, the Montana Railroad's president.
Relevant evidence: No