1990. Existing trails in public open spaces were incorporated into the Ridge Trail, enabling it to reach by 1990 and by 1995. By 1999, of the Ridge Trail had been completed, mainly on public lands. of the Ridge Trail were added in 2005, including a new bridge over San Geronimo Creek; at that point the Ridge Trail had completed . The section of Ridge Trail through Crockett Hills Regional Park in Contra Costa County, which opened in June 2006, pushed the trail past the mark. , the Ridge Trail stands at completed. The section of the trail that runs through San Francisco has been completed, and parts of the SF trail have been rerouted to pass through more green space and over Twin Peaks. Large sections of the trail through San Mateo, Marin, Contra Costa and Alameda counties have been completed. Much of the remaining mileage is on private property in Santa Clara, Sonoma, and Napa, and may require land acquisition and/or easements to expand the trail across these properties. Route Starting at the Golden Gate Bridge and proceeding clockwise, the current and planned alignment of the Ridge Trail takes it through every Bay Area county: Marin, Sonoma, Napa, Solano, Contra Costa, Alameda, Santa Clara, Santa Cruz, San Mateo, and San Francisco counties. The planned alignment of the Ridge Trail extends as far north as Calistoga and Angwin, and as far south as Gilroy. San Francisco City and County From south to north, the trail passes through: Lake Merced Stern Grove Twin Peaks Buena Vista Park The panhandle of Golden Gate Park The Presidio Bay Area Ridge Trail Council The Bay Area Ridge Trail Council (BARTC), founded in 1987, is the organization working on the Ridge Trail. BARTC initially was supported by the Greenbelt Alliance, but incorporated in 1991 as a 501(c)(3) nonprofit under co-chairs Brian O'Neill and Marcia McNally. They partner with governments, nonprofit land trusts, and volunteer organizations in all nine Bay Area counties to help protect and preserve open space and plan, construct, and promote the Ridge Trail. The Council office is in The Presidio, San Francisco. See also San Francisco Bay Trail Bay Area Ridge Trail on OpenStreetMap References Bibliography External links Bay Area Ridge Trail Council Hiking trails in California Trails in the San Francisco Bay Area Mountain biking venues in the United States Protected areas of Santa Clara County, California Protected areas of San