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Difficulty III-IV+(V)
Length 3.1 Miles
Gauge N/A
Flow Range
Reach Info Last Updated 07/05/2019 4:31 am

River Description

Parts of this run are visible from the road, but it often ducks away and runs through areas of trees. Wood will be a problem here. The steep gradient and small size will put a premium on scouting (perhaps walking much of the run in advance of attempting any amount of a run. At lower flows, a series of stair-step pools in the lower part of this reach are popular spots for picnics and cooling off.

Note: I have only 'car scouted' this run, at a time when it carried what would have been marginally boatable flow. Thus, all information here should be viewed accordingly. Anyone who has boated this stream or who otherwise has more familiarity with it (indeed, as to whether is is possible or legal to even attempt to boat!) is welcomed to provide more detail.

(description courtesy of Kevin Mokracek, 2006)

Rapid Descriptions


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Kevin Mokracek
14 years ago

The North Fork is very small and full of strainers but the West Fork is lots of fun. Park at the bridge that crosses the west Fork. Carry your boat up the access road to Cogswell Res. as far as you want. You can scout everything as you walk. The run is generaly class III at flows of 100-200 cfs and gets a bit harder at higher flows. Bear Creek is a major tributary and is also a fun run if it's flowing.
Either take out at your car or continue down to the Off Highway Vehicle Area and take out there.

No Gage

Gage Descriptions

Visual inspection. Should run during rainy season.

Los Angeles County Rainfall Map:  Default is rainfall totals in last 24 hours, but other time intervals can be checked.  
USGS schematic of dams, diversions and gauges in Los Angeles Basin.pdf
Los Angeles Department of Water and Power   




Directions Description

We have no additional detail on this route. Use the map below to calculate how to arrive to the main town from your zipcode.

No Accident Reports




Thomas O'Keefe


Matt Muir


Paul Martzen


Revision #Revision DateAuthorComment
1213191 07/05/19 Thomas O'Keefe updated name
1213192 07/05/19 Thomas O'Keefe updated name
1194348 08/02/05 n/a n/a
1199074 12/20/10 Paul Martzen added links
1199075 12/20/10 Paul Martzen added links