Upper Oso Reservoir is a reservoir located in Orange County, California. It appears on the Lake Forest USGS 7.5-minute topographic quadrangle. The nearest populated place is Rancho Trabuco, approximately 0.8 miles to the E.
Orange County · California
Upper Oso Reservoir is a reservoir located in Orange County, California. It appears on the Lake Forest USGS 7.5-minute topographic quadrangle. The nearest populated place is Rancho Trabuco, approximately 0.8 miles to the E.