Plat Map of Northern Pacific facilities at Bovard, Idaho, September 17, 1913, Sheet Number 1, Line Segment 384, showing the Marshall-Arrow line.

Plat Map of Northern Pacific facilities at Boyd, Montana, August 16, 1923, Sheet Number 2, Line Segment 328, showing the Red Lodge-Silesia line.

Plat Map of Northern Pacific facilities at Boyd, Montana, August 16, 1923, Sheet Number 1, Line Segment 328, showing the Red Lodge-Silesia line.

Plat Map of Northern Pacific facilities at Boyd, Montana, undated, Sheet Number 3, Line Segment 328, showing the Red Lodge-Silesia line.

Plat Map of Northern Pacific facilities at Bozeman, Montana, June 1, 1974, Drawing Number 30981-1, Sheet Number 1, Line Segment 41, showing the Billings-Helena line.

Plat Map of Northern Pacific facilities at Bozeman, Montana, June 1, 1974, Drawing Number 30981-1, Sheet Number 3, Line Segment 41, showing the Billings-Helena line.

Plat Map of Northern Pacific facilities at Bozeman, Montana, June 1, 1974, Drawing Number 30981-1, Sheet Number 2, Line Segment 41, showing the Billings-Helena line.

Plat Map of Northern Pacific facilities at Bozeman, Montana, undated, Drawing Number 30981-3, Sheet Number 2, Line Segment 41, showing the Billings-Helena line, Story mill spur.

Plat Map of Northern Pacific facilities at Bozeman, Montana, undated, Drawing Number 30981-2, Sheet Number 2, Line Segment 41, showing the Billings-Helena line.

Plat Map of Northern Pacific facilities at Bozeman, Montana, undated, Drawing Number 30981-3, Sheet Number 1, Line Segment 41, showing the Billings-Helena line, Story mill spur.