Rancho Rosa Castilla

Rancho Rosa Castilla was a 3,283-acre (13.29 km2) Mexican land grant in the southwestern San Rafael Hills, in present day Los Angeles County, California, given to Juan Ballesteros in 1831 by Governor Manuel Victoria.

[1] It included present day Rose Hills, Lincoln Heights, City Terrace, El Sereno and portions of South Pasadena, Alhambra, and Monterey Park.

When Spanish Franciscans founded the San Gabriel Mission in 1771, they dubbed the small river El Rio Rosa de Castillo.

In 1831, the land was granted to prominent Californio Juan Ballesteros, the Register of the Pueblo of Los Angeles from 1823 to 1824.

[citation needed] With the cession of California to the United States following the Mexican–American War, the 1848 Treaty of Guadalupe Hidalgo provided that the land grants would be honored.