The start and finish of the 5K/10K/half marathon distances will be at Castle Rock Recreation Area in Diablo Foothills in Walnut Creek (1700 Castle Rock Road, Walnut Creek). The 50K will also finish (but not start) at this park. For custom directions, click on "View Larger Map" and then click on "Get Directions".
The start of the 50K will be at Round Valley Regional Preserve in Brentwood (19450 Marsh Creek Road, Brentwood). For custom directions, click on "View Larger Map" and then click on "Get Directions".
Parking will be free but limited, so please carpool if at all possible! The main lot is close to the park entrance and a shuttle from a designated overflow parking area will be provided. All 50Kers must park in the main lot as the shuttle will no longer be running upon completion of the 50K -- except possibly for the winners!