Old Emigrant Trail to Donner Peak is a 18.5 mile out and back trail located near Truckee, CA and is rated as difficult. The trail is primarily used for hiking and mountain biking and is accessible from May until October. 18.5 miles 1900 feet Out & Back hiking mountain biking Expand Map Sign up now to see this map! Reviews (0)Photos (0)Recordings (2)No one has reviewed this trail yet. Be the first!