Rancho Santa Rosa (Moreno)

Rancho Santa Rosa, also known as Rancho Santa Rosa de Moreno, was a 13,306-acre Mexican land grant in present-day Riverside County, California. It was granted in 1846 by Governor Pío Pico to Agustin Olvera and Eduardo Ruiz. The grant encompassed present-day Moreno Valley.

The name "Santa Rosa" likely refers to Saint Rose of Viterbo, an Italian saint. The addition of "Moreno" came later and likely referred to a subsequent owner or prominent family associated with the land.

The rancho was primarily used for cattle grazing. Following the American Conquest of California, ownership passed through various hands. Notable owners included members of the Bandini and Wolfskill families.

The original rancho boundaries gradually diminished over time through sales and subdivisions. The development of irrigation in the late 19th and early 20th centuries transformed the area from a cattle ranching landscape to an agricultural region, and ultimately into the modern city of Moreno Valley.

The historical significance of Rancho Santa Rosa lies in its role as a large landholding during the Rancho era of California, preceding significant urbanization and development. Its influence is still reflected in the name of the city and various landmarks within Moreno Valley.