A walk up Owl Canyon and then down Buckeye Canyon on San Bruno Mountain, led by David Schooley, long time organizer and defender of the remarkable Mountain. A home to endangered plants and butterflies, and the last intact remnant of the ecological niche that once covered most of the San Francisco peninsula, and a place with incredible views from dense oak forests, San Bruno Mountain is also home to some key environmental battles of the 1970s to the present.