This Restore Hetch Hetchy vinyl sticker is a great way to show your support for the environmental movement to restore Hetch Hetchy. This amazing valley was described by John Muir, the father of the national parks, as a sister to Yosemite. It was flooded in 1913 when the O'Shaughnessy Dam was built. Show your support for the removal of the dam and the restoration of this special valley.