Plat Map of Northern Pacific facilities at Mesa Pit, Washington, August 23, 1921, Sheet Number 1, Line Segment 46, showing the Spokane-Pasco-Spokane, Portland, and Seattle Railway Junction line.

Plat Map of Northern Pacific facilities at Mesa Pit, Washington, August 23, 1921, Sheet Number 2, Line Segment 46, showing the Spokane-Pasco-Spokane, Portland, and Seattle Railway Junction line.