San Joaquin, Middle Fork - Devils Postpile Nat'l Monument to Mammoth Pool Reservoir


San Joaquin, Middle Fork, California, US

Disclaimer

Devils Postpile Nat'l Monument to Mammoth Pool Reservoir

Usual Difficulty V+ (for normal flows)
Length 32.5 Miles
Avg. Gradient 120 fpm

18834.jpeg


18834.jpeg
Photo of Taylor Robertson by Darin McQuoid

Gauge Information

Name Range Difficulty Updated Level
MF SAN JOAQUIN R NR MAMMOTH LAKES CA
usgs-11224000 100 - 250 cfs V+ 00h32m 334 cfs (too high)


River Description

The Middle Fork of the San Joaquin is now getting boated by one to several groups a year in most years.   It seems likely this incredible canyon will become steadily more popular.

More and more of the drops are being run, but many portages are still necessary. The famous Crucible section is often paddled now, so that big portage has been eliminated by some groups.

Season:  This reach must be boated as flows drop near the very end of the run off season.  Often this will be in July.  In wet years, the best boating levels could be in August. 

Put-in elevation: 7,545 feet (2300 meters)
Take-out elevation: 3,330 feet (1,015 meters)+- (varies with elevation of Mammoth Pool)

Google Earth has excellent hi resolution aerial images of much of this section.

Put in:  
It is not legal to paddle within Devils Postpile itself, so hike boats downstream on the trail to the monument boundary before launching.


Other Information Sources:
Devil's Postpile Headquarters: 760-934-2289
<7 rivers
Triple Crown story
Wikipedia - Devil's Postpile
Devil's Postpile

Jefferson State Creeking Blog by Darin Mquoid
Devil's Postpile V-V+ (P) [Middle Fork San Joaquin] -Day One-
Devil's Postpile V-V+ (P) [Middle Fork San Joaquin] -Day Two-
Devil's Postpile V-V+ (P) [Middle Fork San Joaquin] -Day Three-

A GUIDE TO THE BEST WHITEWATER IN THE STATE OF CALIFORNIA, HOLBEK & STANLEY, 1988

Class: V-VI


StreamTeam Status: Not Verified
Last Updated: 2010-09-29 16:48:39

Rapid Summary

Mile Rapid Name Class Features (Legend)
20.0Miller's CrossingN/AAccess

Rapid Descriptions

Miller's Crossing (Class N/A, Mile 20.0)

A trail crosses the river here.   A gauging station operated just upstream of the bridge into the 1980's.




User Comments

Users can submit comments.

No Comments



Do more than just check gauges; join over 5,000 AW members today.


Or, consider donating