Hazard Warning: Hazard information may be user-submitted and unverified. Conditions change frequently. Always scout rapids and obstacles yourself.
Playspot CA Class I

Lost Lake: 1st rapid

San Joaquin - Friant Dam to Mendota Pool Dam (CA)

Monitor this Rapid
Gauge Conditions
San Joaquin River below Friant CA Upstream Primary
Runnable: 150.0 – 15,000.0 CFS

Good for canoes and beginners.

Data from American Whitewater & USGS
CDEC Flow Data California
SAN JOAQUIN RIVER NFW Primary
Elevation: 5,200 ft
Data from California Data Exchange Center (CDEC)
Photo
Lost Lake: 1st rapid
Photo courtesy of American Whitewater
Description

This small riffle is popular with fishermen, but paddlers can have some fun playing in the eddy lines and on the far river right side.  At very high flows some interesting play holes can develop at the rounded rocks just downstream. 

The riffle itself is probably manmade; the remains of a small weir.  There is an old gauging station building on the river left, which has markers showing the height of a past flood. 

Also on river left is the Lost Lake campground.  Toilets are available here and at several other locations in Lost Lake Park. 

Location
Type
Playspot
Difficulty
Class I
Mile Marker
0.8 mi
Directions
Navigate
View Full Run
Friant Dam to Mendota Pool Dam
San Joaquin
I 61.6 mi
Current Conditions
5-Day Forecast
Whitewater data from
American Whitewater