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
Yosemite National Park National Park Company in December 1917 and was reorganized in 1920. The Curry Company had been started in 1899 by David and Jennie Curry to provide concessions in the park. They also founded Camp Curry, formerly known as Curry Village, now known as Half Dome Village. The Currys lobbied reluctant park supervisors to allow expansion of concession operations and development in the area. Administrators in the National Park Service felt that limiting the number of concessionaires in each national park would be more financially sound. The Curry Company and its rival, the Yosemite National Park Company, were forced to merge