Happy Valley, Calaveras County, California

Happy Valley is an unincorporated community in Calaveras County, California. It lies at an elevation of 1509 feet (460 m).

Happy Valley was settled by immigrants from France, who engaged in placer gold mining and viticulture, establishing a stone winery. The date of the town's establishment is uncertain; it may predate the 1848 discovery of gold at Sutter's Mill. At its peak there were thousands of residents of many ethnic backgrounds in the vicinity; by 1956 only two buildings remained.