The course consists of a 13.5-mile (North) loop and an 11.5-mile (South) loop, upon which runners will complete in the order of North, then South to achieve their total distance. Runners will start North on a 13.5-mile, counter-clockwise loop from Cool Firehouse, running two miles down the historic Western States trail, heading up Pig Farm trail/to the top of K2. then parts of Olmstead trail to the Ranch, then South on Olmstead to some amazing back country single track then to the Salt Creek Loop Trail south toward the American River and back up the various single track, The Ranch, then back to Cool. Next, they will follow an 11.5-mile loop from Cool Firehouse South down Knickerbocker trail to Blue Oak trail, Olmstead, various connectors and across Triple Creek to Knickerbocker, then South on Olmstead to the Rim Trail, to Pilot Hill, then Olmstead to Catecroft, hidden lake trails, back to Knickerbocker, and back to Cool. The course is extremely well-marked.
The 100K will go North 13.5, South 11.5. North 13.5, South 11.5. North to mile 10, then yellow ribbons (South finish) to achieve 62.2 miles.
The course consists of single track and fire roads.
100K elevation approximately 9000'
50-miler elevation approximately 6,700'
25-miler elevation approximately 3,350'
13.5-mile loop elevation approximately 2200'
11.5-mile loop elevation approximately 1150'
