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Hidden Valley
Hidden Valley
Unincorporated community
	Hidden Valley Location in California Hidden Valley Hidden Valley (the United States)
	Coordinates: 38°45′51″N 121°09′48″W / 38.76417°N 121.16333°W
Country	United States
State	California
County	Placer County
Elevation	436 ft (133 m)

Hidden Valley (formerly, Union House)^[2] is a housing development in an unincorporated area of Placer County, California, adjacent to Granite Bay.^[1] Hidden Valley is located 4.25 miles (6.8 km) east-southeast of Rocklin.^[2] It lies at an elevation of 436 feet (133 m).^[1]

Hidden Valley was established in 1950 and consists of semi-rural housing lots surrounding 180 acres of pasture and small lakes. It was originally planned as a retirement community, due to its rural setting, but it has since become a bedroom community for the Sacramento metropolitan area. It was once informally called the "Aerojet enclave" for the large number of executives of the aerospace company who resided in the area.^[3]

References

^ ^a ^b ^c U.S. Geological Survey Geographic Names Information System: Hidden Valley, Placer County, California
^ ^a ^b Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 498. ISBN 1-884995-14-4.
^ Smith, Leah (August 12, 1988). "Success of a S. Placer neighborhood". The Press-Tribune. Roseville, CA. Retrieved December 22, 2023.