The Historic Union Pacific Rail Trail is 28 miles (45 km) long, and averages 125 feet (38 m) wide.

[1] The trail stretches between Park City (beginning at 40.66°N/111.5013889°W) and Echo Reservoir (ending at 40.972041°N/111.437895°W), following Interstate 80 across Silver Creek Canyon, then going along the Weber River through the towns of Wanship and Coalville.

[2] The trail is designated to be used for only non-motorized activities, including biking, hiking, horseback riding, jogging, and Nordic skiing.

It constructed a five-mile (8 km) narrow gauge railway to transport coal from mines in Coalville to the Union Pacific line in Echo.

At the same time, the Union Pacific Railroad constructed the Echo-Park City Railway, a broad-gauge spur line, alongside it.