Northern Pacific tunnel at Hoppers, Montana, May 23, 1952. Two-track tunnel in process of being daylighted, mainline being single-tracked. Photo by J.M. Fredrickson. Other Subject Classes: tunnel, track
Fredrickson, James M.Elements area
Taxonomy
Code
Scope note(s)
At Pacific Northwest Railroad Archive, still photographs of railroad structures for the passage of trains underground.
Source note(s)
LC Subject Authority Heading: Railroad tunnels https://lccn.loc.gov/sh85110901
Display note(s)
Hierarchical terms
Railroad Tunnels
Railroad Tunnels
Equivalent terms
Railroad Tunnels
UF Tunnels