Mount Tamalpais is a peak in Marin County, California, United States, often considered symbolic of Marin County. Much of Mount Tamalpais is protected within public lands such as Mount Tamalpais State Park, the Marin Municipal Water District watershed, and National Park Service land, such as Muir Woods.GeographyMount Tamalpais is the highest peak in the Marin Hills, which are part of the Northern California Coast Ranges. The elevation at the West Peak, its highest point, where a radar dome currently stands, is at about 2576ft. It stood over 2600ft before the summit was flattened for the radar dome construction. The East Peak, the mountain's second highest peak, is 2572ft. The mountain is clearly visible from the city of San Francisco and the East Bay region.The majority of the mountain is contained in protected public lands, including Mount Tamalpais State Park, Muir Woods National Monument, and the Mount Tamalpais Watershed. It adjoins the Golden Gate National Recreation Area (which in turn adjoins Point Reyes National Seashore) as well as several Marin County Open Space Preserves. This provides nearly 40mi of continuous publicly accessible open space. Some of the lower slopes of Mount Tamalpais fall within several cities and unincorporated communities of Marin County, including Mill Valley, Tamalpais-Homestead Valley, Stinson Beach, and Kentfield. These areas are generally developed, consisting of mostly low-density single-family homes.