Lower Black Box of the San Rafael Trail

Green River, Utah 84540

Lower Black Box of the San Rafael Trail

Lower Black Box of the San Rafael Trail Professional Guide

Detailed Trail Description from our Guidebook

"The Lower Black Box is a deep, narrow canyon of the San Rafael River located on the eastern edge of the San Rafael Swell. This hike involves floating 3.7 miles down the river through the Lower Black Box, and then walking back 2.6 miles along the eastern side of the gorge to the starting point. The trip is an exciting one with a lot to see, but it requires careful planning and it isn’t suitable for everyone. First, the trip through the Lower Black Box shouldn’t be attempted by anyone who doesn’t know how to swim. It is also important that everyone in the group have an inflated inner tube to float through the long, deep pools.

You should include a 30-foot length of rope in your pack for emergency use and for lowering down backpacks. As for clothing, shorts, a shirt, and wettable boots are best. You will be walking over submerged rocks much of the time, so be sure you have good footwear. Also, forget about trying to keep your things dry. Everything you take with you will be soaking wet when you finish with this trip. Once you enter the Black Box it is difficult to turn around. It isn’t the sort of place you want to get caught in after dark, so be sure to allow plenty of time for the trip."

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Trail Information

Green River
Nearby City
1,250 feet
Elevation Gain
Trail Type
12.5 hours
Midsummer through mid-fall
5,550 feet
Trailhead Elevation
5,550 feet
Top Elevation
San Rafael Resource Area, Bureau of Land Management, in Price
Local Contacts
Spotted Wolf Canyon (USGS)
Local Maps

Activity Feed

Dec 2018