Southern Skyline Boulevard Ridge Trail Extension Project will provide additional recreational and educational opportunities on SFPUC land in San Mateo County San Francisco, CA – A plan to add six miles of public trails on Peninsula Watershed land owned by the San Francisco Public Utilities Commission was approved this week. The new Southern Skyline Boulevard Ridge Trail Extension Project will add to the SFPUC’s existing Fifield-Cahill Ridge Trail , a 10-mile path where volunteer docents will continue to offer guided hiking, running, and mountain biking events three days a week. “As stewards of