Snowden, MT is a railroad ghost town. Specifically, it was built by Great Northern to support steam locomotives; and, since steam is no longer used, the town lost its purpose.
It is owned by BNSF but leased to Yellowstone Valley Railroad. [WeeksIII]
|Photo from HAER MONT,42-NOH.V,1--22 (CT) from mt0090|
"This bridge is unique in that it is designed to have the lift mechanism and counterweight able to be moved to a different span of the bridge in the event that the river channel shifts. The lift span was seldom used." [WeeksIII] Note in the following photo that 1.5 of the spans is now over land.