History of the Yosemite area drainages of two river watersheds. Preservation of watersheds was very important to Muir, who said "you cannot save Yosemite Valley without saving its Sierran fountains." The State of California retained control of Yosemite Valley and the Mariposa Grove of Big Trees. Muir and 181 others founded the Sierra Club in 1892, in part to lobby for the transfer of the valley and the grove into the national park. Like Yellowstone National Park before it, Yosemite National Park was at first administered by various units of the United States Army. Captain Abram Wood led the 4th Cavalry Regiment into the new
Yosemite Firefall the Yosemite Park and Curry Company under the direction of the Curry family. YPCC continued to be the concessionaire of Yosemite National Park until 1993 (Although the YPCC has been owned by various corporations in recent decades, the name remained unchanged). During World War II the Firefall was discontinued. Some people in both the National Park Service and the Yosemite Park and Curry Company hoped that it would not be continued after the war. The NPS considered it an unnatural event in a natural area, and the task of presenting the Firefall each night was burdensome to YPCC. Employees drove