Yosemite National Park unified Yosemite National Park. In May 1903, President Theodore Roosevelt camped with Muir near Glacier Point for three days. On that trip, Muir convinced Roosevelt to take control of Yosemite Valley and Mariposa Grove away from California and return it to the federal government. In 1906, Roosevelt signed a bill that did precisely that. The National Park Service was formed in 1916, and Yosemite was transferred to that agency's jurisdiction. Tuolumne Meadows Lodge, Tioga Pass Road, and campgrounds at Tenaya and Merced lakes were also completed in 1916. Automobiles started to enter the park in ever-increasing numbers following the construction
History of the Yosemite area educated about proper food storage. To supplement their incomes, the rangers trapped predators such as coyote, fox, lynx, mountain lion, and wolverine for their furs, a practice that survived until 1925. Predator control continued however; 43 mountain lions were killed in Yosemite by the state lion hunter in 1927. Cooper's hawk and sharp-shinned hawk were hunted to local extinction. Bighorn sheep, which were driven locally extinct through hunting and disease, have been reintroduced in the east of the park. The Park Service and the Yosemite Fund have also helped peregrine falcons and great gray owls to re-establish themselves. Tule elk,