Looking for scenic singletrack? Look no further than Mountain biking Northern California. Roger McGehee spent years searching for the best trails in the northern half of the state. His discoveries are presented here in this comprehensive guide to more than 80 rides.Roger McGehee worked as a field naturalist for fifteen years for the National Park Service and for the Yosemite Institute in Yosemite National Park. He currently lives in Marin County, wher he is a science teacher. He spends his spare time exploring mountain biking trails throughout northern California.