Plat Map of Northern Pacific facilities at Silver Bow, Montana, undated, Sheet Number 1, Line Segment 327, showing the Butte-Garrison line.

Plat Map of Northern Pacific facilities at Silver Star, Montana, December 14, 1914, Sheet Number 1, Line Segment 339, showing the Whitehall-Alder line.

Plat Map of Northern Pacific facilities at Silver Star, Montana, December 14, 1914, Sheet Number 2, Line Segment 339, showing the Whitehall-Alder line.

Plat Map of Northern Pacific facilities at Silverdale, Washington, March 1, 1953, Sheet Number 1, Line Segment 426, showing the Bangor-Shelton line.

Plat Map of Northern Pacific facilities at Silverdale, Washington, March 1, 1953, Sheet Number 2, Line Segment 426, showing the Bangor-Shelton line.

Plat Map of Northern Pacific facilities at Simenson, Washington, July 1, 1954, Sheet Number 2, Line Segment 379, showing the Odair-Connell line.

Plat Map of Northern Pacific facilities at Simenson, Washington, July 1, 1954, Sheet Number 1, Line Segment 379, showing the Odair-Connell line.

Plat Map of Northern Pacific facilities at Skones, Montana, December 1, 1913, Sheet Number 1, Line Segment 326, showing the Logan-Butte line.

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

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