Once on the river, you're treated to fun whitewater and spectacular scenery. Although there is no online gauge for Box Canyon, there is a stick gauge slightly upstream from the Cantera Loop river access point. Flows around 4'6 make for a class III+ run, 5' is good class IV, and getting closer to 6' makes for a stomping class IV+ run.
The first two miles of the run drop at an average gradient of 100 feet per mile. The remaining 5.5 miles to takeout (in Dunsmir at the I-5 overpass) drop at an average gradient of 45 feet per mile. There are alternative put-ins/take-outs. Inquire locally for the best directions.
Below: Enjoying whitewater and the sun on Box Canyon of the Sacramento
