path along the dam perimeter, hetch hetchy reservoir, california, usa

aqueduct beautiful california canyon clean club coast commission dam department falls forest francisco grand hetch hetchy holidays john kolana landscape moccasin mountain mountains muir must national nature nevada outdoor park path powerhouses public restore river road rock san scenery scenic service shaughnessy sierra summer the tourism travel tree trip tueeulala tuolumne usa utilities vacation valley view visit wapama water west yosemite