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.

Plat Map of Northern Pacific facilities at Bonita, Montana, undated, Sheet Number 1, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Bonita, Montana, undated, Sheet Number 2, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Blum, Montana, December 24, 1923, Sheet Number 1, Line Segment 328, showing the Red Lodge-Silesia line.

Plat Map of Northern Pacific facilities at Blum, Montana, December 24, 1923, Sheet Number 2, Line Segment 328, showing the Red Lodge-Silesia line.

Plat Map of Northern Pacific facilities at Blum, Montana, December 24, 1923, Sheet Number 3, Line Segment 328, showing the Red Lodge-Silesia line.

Plat Map of Northern Pacific facilities at Blossburg, Montana, September 1, 1971, Sheet Number 1, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Blossburg, Montana, September 1, 1971, Sheet Number 2, Line Segment 42, showing the Helena-Paradise line.

Plat Map of Northern Pacific facilities at Blakeslee Junction, Washington, April 26, 1915, Sheet Number 1, Line Segment 421, showing the Centralia-Gate line.