Plat Map of Spokane, Portland, and Seattle Railway facilities at McLoughlin, Washington, February 10, 1915, Sheet Number 2, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at McLoughlin, Washington, March 12, 1915, Sheet Number 1, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Mayger, Oregon, April 7, 1915, Sheet Number 2, Line Segment 440, showing the Willbridge-Seaside line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Mayger, Oregon, April 7, 1915, Sheet Number 1, Line Segment 440, showing the Willbridge-Seaside line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Martindale, Washington, April 9, 1915, Sheet Number 2, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Martindale, Washington, April 9, 1915, Sheet Number 1, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Martin, Washington, May 2, 1914, Sheet Number 2, Line Segment 49, showing the Ellensburg-Rainier (Auburn) line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Marshland, Oregon, May 4, 1915, Sheet Number 2, Line Segment 440, showing the Willbridge-Seaside line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Marshland, Oregon, May 14, 1915, Sheet Number 1, Line Segment 440, showing the Willbridge-Seaside line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Macall, Washington, August 11, 1915, Sheet Number 1, Line Segment 47, showing the Latah Junction-Portland line.