Rancho San Miguel (Olivas)
Rancho San Miguel was a 4,694-acre (19.00 km2) Mexican land grant in present-day Ventura County, California given in 1841 by Governor Juan Bautista Alvarado to Felipe Lorenzana and Raymundo Olivas. The grant encompassed the area of present-day City of Ventura not within Rancho Ex-Mission San Buenaventura, with the Santa Clara River marking its southern boundary.