UP 5703 is assisted by 3 more AC units as they bring this long and heavy Valmy coal train up Silver Zone Pass and around Arnold's Loop. UP 7190 is the second unit and UP 5262 and 6231 are shoving ... (more)

Arnold”s Loop on the UP Shafter Sub in eastern Nevada is a wonder to the eyes when you are perched high up on the hillside above it. You can see the entire loop and some of the approaches as well.... (more)

UP 7141 and an ex. Southern Pacific AC unit are struggling with this long and heavy westbound grain train as they round Arnold’s Loop on the Union Pacific's Shafter Sub in eastern Nevada. Two more... (more)

This is Arnold's Loop on Silver Zone Pass in eastern Nevada, built by the Western Pacific Ry. to keep their maximum mainline grade to 1%. The crossing of the pass is in two track levels that rever... (more)

An eastbound UP freight heads upgrade from Shafter, about to cross (for the first time) under I-80, and into Arnold's Loop.