Rancho San Jacinto Sobrante (original) (raw)

Rancho San Jacinto Sobrante was a 48,847-acre (197.68 km2) Mexican land grant in present-day Riverside County, California given in 1846 by Governor Pío Pico to María del Rosario Estudillo de Aguirre. The Rancho San Jacinto Sobrante grant was of the surplus or "sobrante" of Jose Antonio Estudillo's Rancho San Jacinto Viejo and Miguel Pedrorena's Rancho San Jacinto Nuevo y Potrero. The grant encompassed present day Lake Mathews. At the time of the US patent, Rancho San Jacinto Sobrante was a part of San Bernardino County. The County of Riverside was created by the California Legislature in 1893 by taking land from both San Diego and San Bernardino Counties.