Slot Canyon Atlas

AtlasSan Rafael Swell - South

Quandary Canyon

verified ACA 4B High flood risk Hanksville, UT

The Swell's canonical keeper-pothole proving ground, with roughly a dozen potholes and usually two in keeper mode on any given descent.

This is where Utah parties go to practice partner-assist and pothole escape gear. The bypass route is on canyon-right and well documented in Road Trip Ryan. Carry potshots, sand sacks, or hooked aid solutions; do not enter without a plan for the keepers. The Muddy Creek exit option is a long day but avoids the upcanyon return on the standard out-and-back.

Logistics

ManagerBLM Price Field Office, San Rafael Swell
PermitNo permit required. Dispersed BLM land. Contact BLM Price Field Office (435-636-3600) for current conditions.
Distance2.2 RT
Elevation~1119 ft loss
Time7-10 hr
TechnicalRated 3B II (v4a2 III on ropewiki). Seven rappels, longest about 66 ft. The pothole section is the marquee: roughly a dozen potholes, usually two in keeper mode. A bypass route exists for parties without partner-assist gear. Exit via Muddy Creek and Ramp Canyon is an option for stronger groups.
SeasonLate spring through early fall
Flood riskHigh. Monsoon storms Jun-Aug can charge the upper drainage; keeper potholes also fill from minor runoff and stay full for weeks.
Vehicle access4WD high-clearance required to reach the trailhead.
CrowdLow. Technical keeper-pothole reputation keeps casual parties away.
Coordinates38.5702, -110.928

Sources