Union Pacific's Mojave Subdivision- Tehachapi Pass

Part of the Big three mountain passes in Southern California and a Railfanning hotspot. Union Pacific's Mojave Sub through Tehachapi Pass. As Union Pacific and BNSF trackage rights trains slug it out in single track through the steep grades of Tehachapi Mountains with grades up to 2.9% for Southbounds between Bena and Summit Switch and Northbound grades of 2.4% from Mojave to Summit.