Hazard Warning: Hazard information may be user-submitted and unverified. Conditions change frequently. Always scout rapids and obstacles yourself.
Rapid NV Class IV-

Upset Rapid (6)

Colorado - 19. Lee's Ferry to Lake Mead (NV)

Monitor this Rapid
Gauge Conditions
Colorado River at Lees Ferry, AZ Upstream Primary
Runnable: 4,000.0 – 48,000.0 CFS
Colorado River near Grand Canyon, AZ Upstream Primary
Runnable: 4,000.0 – 48,000.0 CFS
Colorado Rvr above Diamond Creek near Peach Springs AZ Downstream Primary
Runnable: 4,000.0 – 48,000.0 CFS
Data from American Whitewater & USGS
Photo
Upset Rapid (6)
Photo courtesy of American Whitewater
Description

This rapid is more challenging than 6 rating would imply and it is worth a scout. This large rapid makes a gradual right turn against the cliff wall on the left with the debris fan on the right. A very large wave hole lurks in the center of the waves about 2/3 of the way through that can flip a loaded raft.

 

The conservative route is to stay as far right as you can scrape down. An exciting line is available on the left side which avoids the main hole, but requires punching other wave holes that are only somewhat smaller. Lines that start left and then move right to avoid the hole tend to have mixed results.

 

The rapid is tougher at lower flows.  Not sure at what flows the wave holes wash out. 

Location
Type
Rapid
Difficulty
Class IV-
Mile Marker
149.8 mi
Directions
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View Full Run
19. Lee's Ferry to Lake Mead
Colorado
III-IV 300.0 mi
Current Conditions
5-Day Forecast
Whitewater data from
American Whitewater