The C&NW had the most routes into Rapid City, from the North, South, and East;, the MILW also came in from the East. The CB&Q came within about 20 miles (west), on its Deadwood branch. I agree that the last passenger service was most likely on the Northwestern (Dakota 400?), around 1960. The 'Q' train enroute from Nebraska to Billings, Montana, went thru Edgemont, SD, and lasted until 1969.Related to this topic, I watched an interesting documentary on PBS last night about the construction of the Mt. Rushmore monument, which was completed in the early 40's. Mention was made of the fact that the builder traveled to Rapid City, SD by train during the 30's, and I was wondering which railroad(s) that might have been. Anyone know?