Dusy/Ershim Trail

Total Miles


3086.6 ft


48 Hours

Technical Rating



Best Time

Summer, Fall

Trail Overview


Difficult: Variety of obstacles includes mud bogs, a slippery log road and lots of big boulders. Thompson Hill is steep with large, loose boulders. Breakage is common. Experienced drivers with modified vehicles only. Don't go alone.


You can't talk about this trail without talking about the Four Wheel Drive Club of Fresno. They pioneered and built this trail starting in 1956 one section at a time starting on the north end. The final section between Dusy Meadow and Thompson Lake was broken through in 1968. In all, they built 10 trails in the Shaver Lake area, most of which are in this book. A big thanks to the club for their efforts. For details go to www.4wdcfresno.net.

Technical Rating


Access Description

From Fresno, take Hwy. 168 about 45 miles east to Shaver Lake. As you come into town, turn right on paved Dinkey Creek Road. Go east about 11.5 miles and turn right on paved McKinley Grove Road. After 14 more miles, turn left on paved Courtright Road. Go north 7.6 miles, and bear right to dam. Cross dam and continue another mile to gate on left marked with 'DUSY' sign. It's just before hiking trail parking lot.