Yosemite National Park a larger national park by 1890, one which encompassed the valley and its surrounding mountains and forests, paving the way for the National Park System. Yosemite is one of the largest and least fragmented habitat blocks in the Sierra Nevada, and the park supports a diversity of plants and animals. The park has an elevation range from and contains five major vegetation zones: chaparral and oak woodland, lower montane forest, upper montane forest, subalpine zone, and alpine. Of California's 7,000 plant species, about 50% occur in the Sierra Nevada and more than 20% are within Yosemite. The park contains suitable
History of the Yosemite area John Muir Wilderness were also protected under the act and include regions removed from the park immediately before it was unified with the state grant in 1906. The "Yosemite Firefall", in which the embers from a bonfire were pushed off a cliff near Glacier Point to create a spectacular effect, was ended in 1968 because it was deemed to be inconsistent with park values. The firefall was occasionally performed in the 1870s and became a nightly tradition with the founding of Camp Curry. Broader tensions in American society surfaced in Yosemite when a large number of youths gathered in the