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

Plat Map of Spokane, Portland, and Seattle Railway facilities at Cambrai, Oregon, June 30, 1916, Sheet Number 1, Line Segment 53, showing the Wishram-Bend line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Cambrai, Oregon, June 30, 1916, Sheet Number 2, Line Segment 53, showing the Wishram-Bend line.

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

Plat Map of Spokane, Portland, and Seattle Railway facilities at Camas, Washington, October 11, 1946, Sheet Number 1, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Camas, Washington, October 11, 1946, Sheet Number 2, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Burr, Washington, July 22, 1915, Sheet Number 1, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Burr, Washington, July 22, 1915, Sheet Number 2, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Bowers Junction, Oregon, February 8, 1915, Sheet Number 1, Line Segment 443, showing the Bowers Junction-Vernonia line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Bowers Junction, Oregon, February 8, 1915, Sheet Number 2, Line Segment 443, showing the Bowers Junction-Vernonia line.