This photo needs editing.
Difficulty IV-V
Length 13 Miles
Gauge N/A
Flow Range
Reach Info Last Updated 06/22/2011 1:19 am

River Description


Other Information Sources: 
Tahoe National Forest
American River Ranger District (530) 367-2224
The Best Whitewater in California,  Holbeck & Stanley
SIERRA WHITEWATER, MARTIN, 1974  describes the last 2 miles from Mosquito Bridge Road down to the MF confluence. 
Middle Fork American River Project Relicensing
Existing Resources Overview pdf
Placer County Water Agency
Upper American River Foundation
UCDavis Hydra Center, flow study news release

Rapid Descriptions

Devil's Gate

Class - V Mile - 3
Rapid Thumbnail Missing

Serious Gorge with big rapids

Bake Oven Trail

Class - N/A Mile - 6
Rapid Thumbnail Missing

A trail comes down to the river from Mosquito Ridge Road, somewhere in this area.  


No Gage

Gage Descriptions

Placer County Water Agency,  PCWA, started informal but daily flow reports during the spring of 2011.   We will post those flows as best we can, when we receive them.   

USGS gauge data: 1965 to 1985 Gauge was located just upstream of Mosquito Ridge Road bridge. 
Middle Fork American and Rubicon River Basins pdf  USGS schematic of gauges and diversions.

Directions Description

To see if the roads to the Last Chance trailhead are open, contact the American River Ranger District office in Foresthill, (530) 367-2224


No Accident Reports



article main photo

Paul D. Martzen

Middle Fork American, Pit River, Tuolumne flow updates

Several utilities periodically report flows to us for river segments that do not have online gauges.   They sometimes make estimates of upcoming flows based on predicted weather conditions.   We will try to update that information to this news article when we receive the new information.   

Middle Fork American River
Blw French Meadows:  220 cfs
Duncan Creek blw Diversion: 165
Abv Middle Fork Interbay:  500 cfs
Blw Middle Fork Interbay:  525 cfs (estimate)
Abv Ralston Afterbay:  600 cfs

Rubicon River
Hell Hole Elevation: 4631.68 ft
Ellicotts:  1610 cfs
Abv Ralston Afterbay:  1990 cfs

North Fork of the Middle Fork American:   540 cfs


Paul Martzen


Matt Muir


Revision #Revision DateAuthorComment
1200318 06/21/11 Paul Martzen Changed put in and access points
1200319 06/22/11 Paul Martzen added links
1189936 07/30/04 n/a n/a
1200295 06/17/11 Paul Martzen Minor flow info