when did joshua tree became a national park
Joshua Tree National Park On August 10, 1936, after Minerva Hoyt and others persuaded the state and federal governments to protect the area, President Franklin D. Roosevelt used the power of the 1906 Antiquities Act to establish Joshua Tree National Monument. It protected about 825,000 acres (334,000 ha).[18] In 1950, the size of the park was reduced by about 290,000 acres to open the land to more mining.[19] The park was elevated to a National Park on October 31, 1994, by the Desert Protection Act, which also added 234,000 acres to the park.[20]