The course for both the half marathon and the 10K begins at the parking lot of Inyo Craters, a popular local spot for hiking and mountain biking. From the starting line at the Inyo Craters parking lot, runners follow the same course for the 10K and the half marathon for much of the race, running along the hiking trails and dirt roads that surround Deer Mountain, which lies just off the Mammoth Scenic Loop.
Note: The course map above provides the approximate route for the race. Though every effort has been made to ensure its accuracy, changes are sometimes made to race routes due to weather conditions, road closures or other circumstances that can require a course to be changed. If you see an error above, contact us here.