Paperback
References
^ Jean Rusmore, Frances Spangle (2012). Peninsula trails: hiking & biking trails on the San Francisco Peninsula, Wilderness Press. Wiki. ISBN 9780899973661 (revised Apr 2012)^ Peninsula Trails : Hiking and Biking Trails on the San Francisco Peninsula by Sue LaTourrette, Betsy Crowder, Jean Rusmore and Frances Spangle (2004, Paperback) ISBN 9780899973661 (revised Sep 2019)
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