Plat Map of Northern Pacific facilities at Walair, Washington, undated, Sheet Number 1, Line Segment 450, showing the Ainsworth Junction-Dayton line.

Plat Map of Northern Pacific facilities at Walla Walla, Washington, undated, Sheet Number 1, Line Segment 450, showing the Ainsworth Junction-Dayton line, yards, industry spurs.

Plat Map of Northern Pacific facilities at Walla Walla, Washington, undated, Sheet Number 1, Line Segment 450, showing the Ainsworth Junction-Dayton line.

Plat Map of Northern Pacific facilities at Walla Walla, Washington, undated, Sheet Number 3, Line Segment 450, showing the Ainsworth Junction-Dayton line.

Plat Map of Northern Pacific facilities at Walla Walla, Washington, undated, Sheet Number 2, Line Segment 450, showing the Ainsworth Junction-Dayton line, industry spurs, Union Pacific roundhouse.

Plat Map of Northern Pacific facilities at Walla Walla, Washington, undated, Sheet Number 3, Line Segment 450, showing the Ainsworth Junction-Dayton line.

Plat Map of Northern Pacific facilities at Walla Walla, Washington, undated, Sheet Number 2, Line Segment 450, showing the Ainsworth Junction-Dayton line.

Plat Map of Northern Pacific facilities at Wapato, Washington, May 14, 1945, Sheet Number 1, Line Segment 49, showing the Ellensburg-Rainier (Auburn) line.

Plat Map of Northern Pacific facilities at Wapato, Washington, May 14, 1945, Sheet Number 2, Line Segment 49, showing the Ellensburg-Rainier (Auburn) line.

Plat Map of Northern Pacific facilities at Wapato, Washington, May 14, 1945, Sheet Number 3, Line Segment 49, showing the Ellensburg-Rainier (Auburn) line.

Plat Map of Northern Pacific facilities at Warden, Washington, March 21, 1916, Sheet Number 2, Line Segment 379, showing the Odair-Connell line.

Plat Map of Northern Pacific facilities at Warden, Washington, March 21, 1916, Sheet Number 1, Line Segment 379, showing the Odair-Connell line.

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

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

Plat Map of Northern Pacific facilities at Warm Springs, Montana, undated, revised August 7, 1958, Sheet Number 2, Line Segment 327, showing the Butte-Garrison line.

Plat Map of Northern Pacific facilities at Warm Springs, Montana, undated, revised August 7, 1958, Sheet Number 1, Line Segment 327, showing the Butte-Garrison line.

Plat Map of Northern Pacific facilities at Waterloo, Montana, December 7, 1914, revised April 1972, Sheet Number 1, Line Segment 339, showing the Whitehall-Alder line.

Plat Map of Northern Pacific facilities at Waterloo, Montana, December 7, 1914, revised April 1972, Sheet Number 2, Line Segment 339, showing the Whitehall-Alder line.

Plat Map of Northern Pacific facilities at Waterman, Oregon, March 21, 1917, Sheet Number 1, Line Segment 452, showing the Smeltz-Athena line.

Plat Map of Northern Pacific facilities at Waterman, Oregon, March 21, 1917, Sheet Number 2, Line Segment 452, showing the Smeltz-Athena line.

Plat Map of Northern Pacific facilities at Wayland, Oregon, March 19, 1917, Sheet Number 2, Line Segment 452, showing the Smeltz-Athena line.

Plat Map of Northern Pacific facilities at Wayland, Oregon, March 19, 1917, Sheet Number 1, Line Segment 452, showing the Smeltz-Athena line.

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

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

Plat Map of Northern Pacific facilities at Weeksville, Montana, October 1, 1974, Drawing Number 31282, Sheet Number 1, Line Segment 44, showing the Paradise-Kootenai line.

Plat Map of Northern Pacific facilities at Weeksville, Montana, October 1, 1974, Sheet Number 2, Line Segment 44, showing the Paradise-Kootenai line.

Plat Map of Northern Pacific facilities at Weeksville, Montana, October 1, 1974, Sheet Number 3, Line Segment 44, showing the Paradise-Kootenai line.

Plat Map of Northern Pacific facilities at Welch, Montana, November 1, 1914, Sheet Number 2, Line Segment 326, showing the Logan-Butte line.

Plat Map of Northern Pacific facilities at Welch, Montana, November 1, 1914, Sheet Number 1, Line Segment 326, showing the Logan-Butte line.

Plat Map of Northern Pacific facilities at Welland, Washington, April 25, 1912, Sheet Number 1, Line Segment 450, showing the Ainsworth Junction-Dayton line.