Plat Map of Northern Pacific facilities at Bonner, Montana, October 21, 1932, Sheet Number 3, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Bonner, Montana, October 21, 1932, Sheet Number 4, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Bonner, Montana, October 21, 1932, Sheet Number 1, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Bonner, Montana, October 21, 1932, Sheet Number 2, Line Segment 42, showing the Helena-Paradise line.

Northern Pacific passenger train number 1, the westbound North Coast Limited, passes the semaphore signal gantry at Bonner, Montana, in 1943. Leading the train is a Class A-2 Northern-type locomotive, built by Baldwin Locomotive Works in 1934. At far right is the electrified mainline of the Milwaukee Road, paralleling the Northern Pacific for several miles. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, steam locomotive, signal, semaphore