West Rim Trail is a 28.82-mile out-and-back foot trail in Zion National Park, Utah. It climbs 3,954 ft to a high point of 7,444 ft. Difficulty: very strenuous, from the NPS hiking-rating formula.

West Rim to Scout Lookout · rated “strenuous hike”
Length (one way) | 1.9 mi (3 km) Elevation | Gain: 1187 ft (361.8 m) | Loss: 63 ft (19.2 m) Grade | Typical: 12.9% | Maximum: 43% | 67% of the trail is at an 8.3% or higher grade.
Read the official NPS description
The Park Service lists a shorter hike along this trail: West Rim to Scout Lookout, 3.8 mi round trip. The whole mapped trail is 28.82 mi.
Open West Rim Trail on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Zion. Zion has permits or reservations for some areas: see the Zion page for what's needed.