BNSF’s Gavin Yard tower near Minot, ND is so high up it makes me think of an airport’s air traffic controller tower.
http://www.gngoat.org/gavin_yard_tower.jpg
http://www.flickriver.com/photos/23711298@N07/2506578218/
The Gavin Tower would built by BN predecessor GN.
http://www.gn-npjointarchive.org/GNRHS_PR/GNRHS.PR.YRD.36.jpg