Great Northern Blueprint Number 1244-6-1, map of Great Falls & Northern Railway Piegan to Conrad, 1891. Other subject categories: Filing Map

AFE 35708, Piegan, Montana, 1927. Installing Auxiliary Telepohine and Selectorsin Section Houses at Fort Piegan, Triple Divide and Rising Wolf, Montana. Interstate Commerce Commission Account Number 17, Roadway buildings. Cost: $398. Series II. Lines West. Kalispell Division.

Great Northern Blueprint Number G-35, map of From East Boundry of Piegan, Blood and Blackfoot Reservation East 20 Miles, 1891. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number G-35-1, map of Saint Paul, Minneapolis & Manitoba Railway through the Piegan, Blood and Blackfoot Reservations, 1891. Other subject categories: Filing Map

Great Northern Blueprint Number B-42-3, map of From Pigan, Blood and Blackfoot Reservation through Seville, Carlow, Blackfoot, Durham to Midvale, 1890. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number G-36-1, map of From East Boundry of Piegan, Blood and Blackfoot Reservation East 5 Miles, 1891. Other subject categories: Right of Way and Track Map