(Mt Carmel Jct UT)
The trail for Belly of the Dragon began with a bit of a rock climb down before entering a tunnel that goes under the highway. It was originally dug to provide water drainage; but, no longer served that purpose.
Over the years, the water has carved the walls in such a way that it does give the feeling you could be inside the gut of a dragon. Unfortunately, the walls have been defaced by people carving their names into the soft rock.
The trail continued when it emerged on the other side, and went up a wash until it reached a tall dryfall. A narrow, steep path wound up and around to the top of the fall, and then the trail continued a few miles further to a slot canyon (so I was told).
I only went as far as the fall. So, it was a short, one mile round-trip hike that was nearby my campsite. An easy choice for some pleasant exercise.
Camp: BLM-Twin Hollows Canyon boondock
Scene: Trail, tunnel