Rancho Santa Rosa (Moreno)

Rancho Santa Rosa
Cattle at Rancho Santa Rosa in 1895
LocationSanta Rosa Plateau, near Murrieta, California
Coordinates33°33′N 117°16′W / 33.55°N 117.27°W / 33.55; -117.27
Reference no.1005
Location of Rancho Santa Rosa in California

Rancho Santa Rosa was a 47,815-acre (193.50 km2) Mexican land grant in present day Riverside County, California given in 1846 by Governor Pio Pico to Juan Moreno. At the time of the US patent, Rancho Santa Rosa was a part of San Diego County. Riverside County was created by the California Legislature in 1893 by taking land from both San Bernardino and San Diego Counties. The site is now registered as a California Historical Landmark.