Co-ed Run from 3 - 12 miles
Meet 8:30 at the trail head of Sawyer Camp Trail Park at Crystal Springs Reservoir
To Sawyer Park Trail South Entrance in San Mateo - From I-280 (north or south) take Black Mountain Road/Hayne Road Exit. Go west to Skyline Blvd., then south on Skyline one mile to trail entrance at the junction of Skyline Blvd. and Crystal Springs Road.
Park on the shoulder of the road but be careful to note the "parking signs" and not to park where it is not allowed.
http://www.co.sanmateo.ca.us/smc/department/home/0,,5556687_12305993_12328403,00.html
Bathrooms and water are available. The best thing about this site is that every 1/2 mile is marked!