Located on the north side of Mount Tamalpais and managed by the Marin Water District, the trails in the Mount Tamalpais Watershed are much less visited than the popular trails of Muir Woods National Monument and Mount Tamalpais State Park. In fact, no organized trail races are permitted to utilize these trails. Cataract Falls and Bon Tempe Lake see the most traffic, but there are a plethora of delightful single tracks further back where you can find solitude on even the busiest summer weekends. The watershed provides great variety, including lush redwood canyons, spectacular waterfalls, meadows, panoramic vistas, and lakes. The trail running here tends to be advanced with steeply graded climbs and technical trails, but the rewards more than compensate. Please note that many of the single track trails here tend to be under-maintained and can become overgrown with poor signage.