Course Description

The Canyons 100K is a double out-and-back course based in Foresthill CA with a start-finish-village at the old Foresthill Elementary School. It is run mostly on single-track.

You will start going East on Foresthill Rd, right on Bath Rd and then pick up the single track at 1.5 miles as you drop into Volcano Canyon. You will climb sharply then descend along the road before turning right (course update) on Gorman Ranch Road. Run 3.5 miles to the Aid Station before turning around and then on to Michigan Bluff. From Michigan Bluff enjoy a nearly 3 mile 1800 feet drop down El Dorado Canyon and then climb 2500 feet to the turnaround at Deadwood Cemetery. Turn around and head back to Foresthill (without the out and back on Gorman Road).

Runners return to Foresthill Elementary School at the half way point where you continue on Foresthill Rd for less than a mile and go left on Cal St, a quick right-left on Lowe St and then cross Mosquito Ridge Rd where you pick up the single track again. A steep descent and several creek crossings bring you to Ca1 at mile 35.5. The trail rolls along above the middle fork of the American River until you hit the "elevator shaft" descent prior to Cal2 at mile 40.5. Make sure you fill up here, its almost 8 miles to Rucky Chucky and the turn around at mile 47.8 in what is likely the heat of the day. Cal Street to Rucky Chucky is the fastest 16-mile section of the WS Trail, but be sure to save some energy for the climb back to the finish, where the post-race celebrations, complete with hot grilled food and cold drinks, will be one to remember!

Start Time

The 100K race will start at 5:30 am.

Course Map:


Click the map to view with AllTrails.

GPX file here.

100K Canyons Elevation Profile Chart.jpg



The 100K has an approximate elevation gain/loss of 16,500 feet.

Aid Stations:

Canyons AS Chart 2019 ALT Course.jpg