Since the 1920s, Camp Mather has beckoned to outdoor enthusiasts to come enjoy restful, carefree times in the Sierra. Bordering Yosemite National Park, Mather was established as a construction camp for laborers building the O'Shaughnessy Dam in the Hetch Hetchy Valley. The camp began welcoming San Franciscans after construction was completed and then, as now, offers a welcome respite from city life. Guests stay in employee cabins and swim in the lake...