Back to back SW10s await an assignment beneath the majestic Wasatch Mountains at Provo Yard on March 2, 1997.

One of Union Pacific's iconic SW10s pulls a short Cutler Turn through Pleasant Grove on a sunny Sept. 27, 1988 afternoon.

An SW10/SD40-2 combo work Provo Yard's afternoon switch job on March 31, 1996.

Back-to-back SW10s make a set out at Big Four Distributing Co. in Provo.