Brimhall Natural Bridge is a 2.3 mile lightly trafficked out and back trail located near Hanksville, UT that features a river and is rated as difficult. The trail is primarily used for hiking and camping and is accessible from September until May.
A rugged hike through a narrow canyon rewards the hiker with a close-up view of Brimhall Natural Bridge, a double span.
Brimhall Bridge is one of the best arches I've seen. Bring bug spray! The deer flies In Halls Creek were terrible when I went in June.
Getting down Halls Mesa is a bit of a workout but it's very easy after that.