Finding Hetch Hetchy

When the O’Shaughnessy Dam was constructed in 1923, the Hetch Hetchy Valley in Yosemite National Park became nearly inaccessible to visitors. It has since become the subject of great environmental controversy. Eager to explore this wild and largely unvisited corner of Yosemite, veteran climbers Timmy O’Neill and Lucho Rivera set out to experience Hetch Hetchy firsthand, scaling its granite walls and advocating for its restoration.