Slot Canyon Atlas

AtlasBighorn Canyon NRA

Spur Canyon

verified ACA 3B Moderate flood risk Lovell, WY

Half day limestone canyon in an unexpected location on the Wyoming Montana border. Four short rappels and a cave exit.

First descended by Jeff Baird in the early 2000s. The optional one mile shuttle saves an uphill exit road walk. Rattlesnakes present spring through fall. Cell coverage nonexistent; the access road from Lovell is rough and washboarded.

Logistics

ManagerNPS Bighorn Canyon National Recreation Area
PermitNo canyoneering permit required. No entrance fee for Bighorn Canyon NRA. Seasonal closure Dec 1 to Apr 30 for wildlife (bighorn sheep lambing).
Distance3.4 RT
Elevation~530 ft loss on approach, ~385 ft loss in canyon, ~900 ft gain on exit
Time3 hr
TechnicalGrade 3B II (v3a2 II). 3 to 5 rappels max 55 ft. Four named drops: 30 ft, 55 ft, 40 ft, 35 ft. Limestone narrows. Multiple wading pools up to waist deep. Cave exit with 4th class climbing to escape above the formation. Log jams in the lower canyon depending on year.
SeasonMay-Oct (closed Dec 1 to Apr 30)
Flood riskModerate. Depends on Bighorn Lake water levels and recent rain in the upper basin. Lake backup can flood the lower exit; check NPS pool levels before going.
Vehicle access4WD/HC required for trailhead approach
CrowdSolitude likely
Coordinates44.9723, -108.2198

Sources