Fountain Grove was a utopian colony founded near Santa Rosa, California, by Thomas Lake Harris in 1875.
The neighborhood now refers to the modern-day Fountaingrove, in north Santa Rosa, west of Hidden Valley and east of Bicentennial Way and Piner Road areas.
Nagasawa Kanaye (1852-1934) was Harris' California lieutenant, who acted as developer and manager of the community's 2,000 acres (8 km2) of vineyards near Santa Rosa.
The main structure was a two-story mansion originally occupied by Harris, his wife, and a handful of utopians; it was also used for important guest lodging and common meals.
Luxuriously furnished, it was in the center of a ring of eucalyptus trees and little gardens and a lily pond, but Harris maintained that his "real palace" was in "interspace.