Constrychnine Canyon in North Wash BLM, UT

Canyoneer Constrychnine Canyon North Wash BLM, UT

Class 3 3A (200 ft max) 3.7 miles 800 gain 4-6 hrs Loop Apr 11, 2021
Effort
Beauty
Personality
Solitude

Constrychnine Canyon GPX Track

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This is a technical canyon. If you are unfamiliar with how to build anchors or the gear required for canyoneering do not attempt this route.

Constrychnine Canyon is one of the canyons in the popular Poison Spring area. It's not a favorite, really just seeming like a bunch of rappels through a chasm, but it does have some pretty highlights within the short narrows. Reaching the trailhead is possible by any vehicle. We started north along a social trail and continued past the head of Slideanide Canyon, and continuing through the desert toward the head of Constrychnine Canyon. A Class 2 option led into the head of the canyon and we started down the wide drainage. The first big rappel met us shortly after, which brought us off the rim and into more wash walking. The second big rappel led into Constrychnine Canyon's narrows. A third big rappel brought us deeper still. Walking through the narrows was mostly easy with just some boulders and light scrambling, but stemming and down-climbing was minimal. A fourth rappel was anchored off a chockstone and was shorter, and prettier, leading into a short section of the prettiest narrows for the canyon. A final rappel (short enough you may want to consider just sliding down it) led into the watercourse.

Once out of Constrychnine Canyon, continue north down the watercourse. We passed three side-canyons on the right as well as a small lush section with some trees. Past the third side-canyon is a ramp on the left. This was our exit. Easy slabs led to a Class 3 move aided by a small stack of rocks. A Class 3 move was also required to get off the slope and reach the rim, a slightly more difficult move. A social trail led back to the trailhead.

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After heading along a social trail to the head of Constrychnine Canyon, we entered its watercourse.
After heading along a social trail to the head of Constrychnine Canyon, we entered its watercourse.
First big rappel of Constrychnine Canyon.
First big rappel of Constrychnine Canyon.
Bottom of rap 1.
Bottom of rap 1.
Open walking for a bit through Constrychnine Canyon.
Open walking for a bit through Constrychnine Canyon.
Image 4 from gallery
Second rappel.
Second rappel.
Bottom of rap 2.
Bottom of rap 2.
Pretty narrows.
Pretty narrows.
A 3rd rappel within the narrows.
A 3rd rappel within the narrows.
Image 9 from gallery
Image 10 from gallery
Image 11 from gallery
A fourth rappel off a chockstone.
A fourth rappel off a chockstone.
Rap 4.
Rap 4.
Bottom of rap 4.
Bottom of rap 4.
More pretty narrows, a short section.
More pretty narrows, a short section.
Image 16 from gallery
View back into the narrows.
View back into the narrows.
Almost at the end of the narrows.
Almost at the end of the narrows.
Final rappel, it's short.
Final rappel, it's short.
Bottom of rap 5.
Bottom of rap 5.
Continuing out of the watercourse.
Continuing out of the watercourse.
View back into Constrychnine Canyon.
View back into Constrychnine Canyon.
Image 23 from gallery
Junction with Slideanide Canyon.
Junction with Slideanide Canyon.
Image 25 from gallery
A ramp we used for the escape on the left.
A ramp we used for the escape on the left.
View back into the watercourse we came out of, left, as we ascend.
View back into the watercourse we came out of, left, as we ascend.
Class 3 obstacle.
Class 3 obstacle.
View back down the slab exit.
View back down the slab exit.
Slab exit route.
Slab exit route.
Class 3 move to gain the rim. A social trail led back to the trailhead.
Class 3 move to gain the rim. A social trail led back to the trailhead.

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Hire/refer me as a web developer or send me a few bucks if you find my site useful. I’m not sponsored, so all fees are out-of-pocket and my time preparing trip reports is unpaid. I really appreciate it!