Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, undated. Burlington Northern File Number RS-175, Reference Number 101.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1954. Burlington Northern File Number RS-174, Reference Number 10101.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1952. Burlington Northern File Number E-6-1, Reference Number 10101.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1945. Burlington Northern File Number TV-490, Reference Number 10110.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1931. Burlington Northern File Number L-12-20, Reference Number 10105.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1924. Burlington Northern File Number E-371, Reference Number 10108, Sheet 009.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1923. Burlington Northern File Number G-5-1, Reference Number 10110.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1916. Burlington Northern File Number RR-156, Reference Number 10104.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1916. Burlington Northern File Number RR-157, Reference Number 10104.

Spokane, Portland, and Seattle Railway Engineering Drawing: Microwave Tower 100 Foot at Portland, Oregon, prepared in 1970. Burlington Northern File Number 10,034, Reference Number 10101, Sheet 001.