Rancho San Jacinto Sobrante

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.