Complex sentence: One of them, Rancho Los Coyotes, included the current site of the City of Buena Park where the rancho's adobe headquarters was on what is now Los Coyotes Country Club's golf course.
Split into simpler sentences: One of them, Rancho Los Coyotes, included the current site of the City of Buena Park. The rancho's adobe headquarters lay on what is now Los Coyotes Country Club's golf course.