SR-29 begins at the Emery County line, in the Manti-La Sal National Forest, paralleling the San Rafael River.

Near the county line is also Joe's Valley State Park and Joe's Valley Reservoir, where the road diverts around the reservoir to the north, then resumes an east south-easterly course about 18 miles (29 km) into Orangeville.

Just off SR-29, about 10 miles (16 km) west north-west of Orangeville, is the Wilberg Mine, location of a fire that took 27 lives in 1984.

[1] The road from SR-11 (by 1926 US-89) in Ephraim to SR-10 at Castle Dale Junction was added to the state highway system in 1915.

[4] Due to the creation of Joe's Valley Reservoir, a new alignment was defined in 1965, adding about 4 miles (6.5 km) to the length; the legislature removed the portion west of the reservoir (Ephraim Canyon Road) from the state highway system in 1969.