National forest in California, US
Calaveras Big Tree National Forest, in the Sierra Nevada, was established in California on May 11, 1954, with to protect a grove of Giant Sequoias, although it had been authorized since February 18, 1909.
Combined.
Calaveras Big Tree National Forest was the smallest unit in the United States National Forest system, and was administratively combined with the Stanislaus National Forest. 
Transfer.
In 1990 it was proposed that the federal lands be transferred to the State of California to be included in the adjoining Calaveras Big Trees State Park. 
References.
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