Great Northern Engineering Drawing: Shop Plan - 40 Foot Beam, Bridge 34.6 - Boulder Creek, west of Barstow, Washington, Line Segment 377, Milepost 21.13. Sheet 273 - 4594 - 8, undated.
Elements area
Taxonomy
Code
Scope note(s)
Source note(s)
Taken From: "GN Locations" database compiled by Jim Chinquist, year 1950.