jon mural opposed the dam and blocked progress for years but in 1913, congressman john from money george would clear the way. signed by president wood row wilson, it created a relationship between yosemite national park and the city of san francisco that continues to this day. >> take them to the -- it's an imperative for collaboration with the national park service and the forest service for our ongoing work as well as maintenance projects and capital improvement projects. >> we have a strong partnership with the national park service aimed at protection of the watershed, it's for the natural values for it, and wilderness area for the park service and protection of water quality. >> for a century now, this dam in a national park brought fresh water to the san francisco bay area which shared stewardship, it will continue to do so for generations to come. >> this will is the moment. it's made possible