Rancho San Juan Cajón de Santa Ana
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Rancho San Juan Cajón de Santa Ana was a 35,971-acre (145.57 km2) Mexican land grant in present-day Orange County, California.
The grant was given in 1837 by Governor Juan Alvarado to Juan Pacífico Ontiveros.[1] The grant encompassed the present-day cities of Anaheim, Fullerton, and Placentia.[2][3][4]