|Elevation||2,257 ft (688 m)|
Sylvandale is a former settlement in Mendocino County, California. It was located 7.5 miles (12 km) north-northwest of Willits, at an elevation of 2257 feet (688 m). Sylvandale still appeared on maps as of 1948.
A post office operated at Sylvandale from 1911 to 1918.
- U.S. Geological Survey Geographic Names Information System: Sylvandale, California
- Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Quill Driver Books. p. 154. ISBN 9781884995149.
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