Spilling Thought: Happy 50th anniversary to the Wilderness Act! President Lyndon Johnson’s signing of the Wilderness Act and Land and Water Conservation Fund Act in 1964 is perhaps most important single event in American conservation history. Since its signing, Congress has designated more than 106 million acres of federal public lands as wilderness. Last week we asked you to pick your favorite wilderness photo and here is the winner. This photo was taken from the Tuolumne Meadows Wilderness Center within Yosemite National Park by Sean Goebel. by usinterior