South Fork Stanislaus River Trail (4N90)

Total Miles


1497.64 ft


2 Hours

Technical Rating



Best Time

Spring, Summer, Fall

Trail Overview

This trail is a great spot to retreat for the weekend. The trail follows the South Fork of the Stanislaus from 4N01 (Frasier Flat) to the inlet of Lyons Reservoir. You can no longer get all the way to the reservoir as it has been gated off, so this is an in-and-back-out trail. The trail is sometimes muddy and has a few rough spots that can be done by an experienced driver in a 4x4 vehicle with no problem. Just about every right turn off of the main trail leads to a camping spot near the river, and there are tons of beautiful spots to enjoy. Pack it in, pack it out.


In spring and early summer, there are usually some mud holes throughout the trail but they can usually be avoided. There are some rocky sections and spots with holes where articulation is key, but the trail all in all is not a difficult trail. This is not an OHV trail.


Sugar Pine Rail Road grade

Technical Rating


Access Description

Turn off Highway 108 just before Cold Springs. Take a left on Frasier Flat Road (4N01). Drive down the road almost to the river it is the last left before the river. (4N90)