San Luis Obispo National Forest
San Luis Obispo National Forest was established as the San Luis Obispo Forest Reserve by the U.S. Forest Service in California on June 25, 1906 with 363,350 acres (1,470.4 km2). It became a National Forest on March 4, 1907. On July 1, 1908 part of the forest was combined with Santa Barbara National Forest, the remainder was used to establish San Luis National Forest, and the name was discontinued. 
- Davis, Richard C. (September 29, 2005), National Forests of the United States (pdf), The Forest History Society
- Forest History Society
- Listing of the National Forests of the United States and Their Dates (from the Forest History Society website) Text from Davis, Richard C., ed. Encyclopedia of American Forest and Conservation History. New York: Macmillan Publishing Company for the Forest History Society, 1983. Vol. II, pp. 743-788.