Rancho Cañada de los Alisos
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Rancho Cañada de los Alisos was a 10,668-acre (43.17 km2) Mexican land grant in present-day Orange County, California given by Governor Juan Bautista Alvarado to Jose Antonio Fernando Serrano in 1842, and enlarged by a second grant by Pio Pico in 1846.[1] The name means "Glen of the Alders" in Spanish, after the native White Alder (Alnus rhombifolia) trees growing there. The rancho included the present day cities of Lake Forest (formerly El Toro), and the Marine Corps Air Station El Toro—Orange County Great Park site in Irvine.[2][3][4][5]