The American River 50 course is single wave start, which starts at 6:00 A.M.
The Run begins at Brown's Ravine Marina, at Folsom Lake State Recreation Area. Runners will begin their 50 mile journey on the pavement for .9 miles on the park service road before making a right hand turn on to the single track trail. Runners will remain on single track trails to Folsom Point. At Folsom Point (mile 4.97), runners will make a loop on the service road and proceed past the park kiosk. Runners will turn right on Natoma Street and head west on the Folsom Lake Crossing.
The course then heads South on the American River Parkway to the historic Walker Bridge. The course will wind down under the Powerhouse and behind the Lake Natoma Inn hotel. The course remains on the south side of Lake Natoma on the American River Parkway through Willow Creek (mile 12.77) and then to the Aquatic Center. At the Aquatic Center, the course traverses across the bridge up to the Nimbus Bluffs.
Runners will ascend on a single track trail to the Hazel Bluffs. Upon descending from the Hazel Bluffs, the course will re-connect with the bike trail and intermix with fire roads and single track trails through mile 24, Beal's Point.
After reaching Beal's Point at mile 24, runners will enjoy single track trails and head north on the path worn by gold miners in search of riches: The Pioneer Express Trail, near the entrance of the Granite Bay State Park. Runners will cross the entrance road to the park and continue on the Pioneer Express Trail towards the Granite Bay Horse Assembly (mile 29.45). The American River 25 event will start at Beal's Point and proceed thru the remainder of the course as AR50.
After exiting the Horse Assembly area, the route continues north to Twin Rocks. At Twin Rocks, the route will veer right and ascend on a single track trail loop for 2.22 miles. The course will rejoin the Pioneer Express and continue through Buzzards Cove, Horseshoe Bar and Rattlesnake Bar The route continues to the Power Plant, Avery's Pond and Dowdin's Post.
After leaving Dowdin's Post, the trail will wind you to the infamous "Dam Wall" and on to Auburn Overlook.
Official Course Cut off is 14 hours.