Question: In which county did the family of the first man who drove cattle from Texas into Montana build a tribute to a fallen family member of the 163rd Infantry Regiment?
Sentence (from "Soldiers Chapel"): Soldiers Chapel is a non-denominational Christian memorial chapel in Big Sky, Gallatin County, Montana, USA, dedicated in 1955 by the Nelson Story family in tribute to a fallen family member of the 163rd Infantry Regiment.
Relevant evidence: Yes