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 Mock, Washington, September 1, 1915, Sheet Number 2, Line Segment 47, showing the Latah Junction-Portland line.

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

Plat Map of Spokane, Portland, and Seattle Railway facilities at Mt Pleasant, Washington, February 8, 1915, Sheet Number 2, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at Mt Pleasant, Washington, February 8, 1915, Sheet Number 1, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at North Bonneville, Washington, October 28, 1935, Sheet Number 1, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at North Dalles, Washington, July 20, 1959, Sheet Number 1, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at North Dalles, Washington, July 20, 1959, Sheet Number 2, Line Segment 47, showing the Latah Junction-Portland line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at North Plains, Oregon, September 5, 1911, Sheet Number 1, Line Segment 443, showing the Bowers Junction-Vernonia line.

Plat Map of Spokane, Portland, and Seattle Railway facilities at North Plains, Oregon, September 5, 1911, Sheet Number 2, Line Segment 443, showing the Bowers Junction-Vernonia line.