Course Map: Diablo Trail Half Marathon

Runners start the race at Mitchell Creek Park, near the northern entrance to Mount Diablo State Park. From there, they follow a combination of fire roads and single-track trails from the start all the way south and east toward the summit of Mt. Diablo, along Mitchell Canyon Road for about 5 1/2 miles, and then the Juniper Trail. Note: The course map below displays the route from the start to the mid-way point of the race; the second half of the race goes in reverse, back to Mitchell Creek Park. (MORE: Diablo Trail Half Marathon event details)

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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.