Sundance Trail to Dark Canyon is a 4.3 mile lightly trafficked out and back trail located near Blanding, Utah and is rated as difficult. The trail is primarily used for hiking and is best used from April until October.
We just make it this weekend, it's very beautiful and hard. The trailhead marked here actually is about 1.5-2 miles to the parking lot. And the road from freeway to parking lot is a bit tough, SUV is recommended, although I see several full size cars also make it, I won't try that. There are several good camping sites down in the canyon. We cannot make it to the Colorado river nor Young Canyon, it will take some time to look for the best trail, be prepared for that.