Union Pacific's MRONY, aka the 'Macaroni', climbs east through Spanish Fork Canyon on a sunny June 20, 2014 morning.

Union Pacific's MRONY heads east on Main 1 through CP RG677 'Rio' on June 20, 2014. The old time Rio Grande era signals at this location are scheduled for replaced with new tri-lights when PTC is ... (more)

Union Pacific's MRONY makes a switch move through CP RG699 Ironton on the morning of June 20, 2014. The Rio Grande era GRS 'Searchlight' block signals at this control point are slated for replacem... (more)

Union Pacific's daily Salt Lake City to Denver manifest train is about to enter the upper end of Utah's Price River canyon. The grade steepens here to 2.4%.