Rancho Santa Ana del Chino
Rancho Santa Ana del Chino was a 22,193-acre (89.81 km2) Mexican land grant in the Chino Hills and southwestern Pomona Valley, in present-day San Bernardino County, California. It was granted to Antonio Maria Lugo in 1841 by Mexican Alta California Governor Juan Bautista Alvarado.
Source: Wikipedia — Rancho Santa Ana del Chino (CC BY-SA 4.0)