Plat Map of Northern Pacific facilities at Slater, Washington, September 26, 1912, Sheet Number 2, Line Segment 450, showing the Ainsworth Junction-Dayton line.

Plat Map of Northern Pacific facilities at Slater, Washington, September 26, 1912, Sheet Number 1, Line Segment 450, showing the Ainsworth Junction-Dayton line.

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

Plat Map of Northern Pacific facilities at Smeltz, Oregon, April 2, 1917, Sheet Number 1, Line Segment 452, showing the Smeltz-Athena line.

Plat Map of Northern Pacific facilities at Snake River Junction, Washington, undated, Sheet Number 1, Line Segment 46, showing the Spokane-Pasco-Spokane, Portland, and Seattle Railway Junction line.

Plat Map of Northern Pacific facilities at Snake River Junction, Washington, undated, Sheet Number 2, Line Segment 46, showing the Spokane-Pasco-Spokane, Portland, and Seattle Railway Junction line.

Plat Map of Northern Pacific facilities at Snohomish, Washington, August 22, 1917, Sheet Number 1, Line Segment 403, showing the Seattle-Sumas line, north Snohomish.

Plat Map of Northern Pacific facilities at Snohomish, Washington, August 22, 1917, Sheet Number 2, Line Segment 403, showing the Seattle-Sumas line, north Snohomish.

Plat Map of Northern Pacific facilities at Snohomish, Washington, June 1, 1922, Sheet Number 2, Line Segment 403, showing the Seattle-Sumasÿline, logging spur, bridge approach.

Plat Map of Northern Pacific facilities at Snohomish, Washington, June 1, 1922, Sheet Number 1, Line Segment 403, showing the Seattle-Sumas line, Snohomish-Everett line, north Snohomish,ÿSnohomish Junction.