Arch Nemesis Canyon | Capitol Gorge

Canyoneering Arch Nemesis Canyon - Capitol Gorge Canyoneering Arch Nemesis Canyon

Capitol Gorge

Please note, several canyons and routes close seasonally each year for the protection of sensitive natural resources. For 2026 -- effective April 1 through August 31, 2026, the following routes are closed:

  • The heads of Burro Wash and Fivemile Wash continuing east two miles (top-down routes).
  • Shinob Canyon and any route descending into Shinob including Na-gah, Nighthawk and Timpie.
  • Arch Nemesis

Overview

Mon Areas of blowing dust. Sunny, with a high near 86. Southwest wind 5 to 22 mph, with gusts as high as 32 mph.
86° | 55°
Tue Mostly sunny, with a high near 87. South southwest wind 3 to 21 mph.
87° | 58°
Wed Sunny, with a high near 89.
89° | 56°
Thu Sunny, with a high near 84.
84° | 56°
Fri Sunny, with a high near 89.
89° | 58°
RATING: 3B
SEASON: Late Spring, Summer, Fall
RAPPELS: 9+ to 30 m ( 99 ft. )
WATER: A few pools in wetter times, Wetsuits recommended in cooler temps.
FLASHFLOOD: High in the short slot section.
Mon Areas of blowing dust. Sunny, with a high near 86. Southwest wind 5 to 22 mph, with gusts as high as 32 mph.
86° | 55°
Tue Mostly sunny, with a high near 87. South southwest wind 3 to 21 mph.
87° | 58°
Wed Sunny, with a high near 89.
89° | 56°
Thu Sunny, with a high near 84.
84° | 56°
Fri Sunny, with a high near 89.
89° | 58°
Ryan on the big rappel.
Ryan on the big rappel.

Few canyons pack as much fun in as short of a section of a canyon as this one! The approach, a leisurely hour, is scenic with a dramatic background. The canyon? It starts mellow and open, possibly even a bit hum-drum. Soon though, a natural bridge appears, then a few pools, and next thing you know, you deep in a slot canyon with a smile ear-to-ear.

The canyon is straightforward, but one of the rappel anchors is a deadman without much material to build a new one with if the old one washes away. That, coupled with a hard start on that particular rappel, make this an intermediate canyon. Beginners with competent leadership would also do well.

Brent heading for the deadman rappel.
Brent heading for the deadman rappel.
Christy in great light in the canyon.
Christy in great light in the canyon.

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