Onion Mountain is a summit located in Capitol County, Connecticut. It appears on the Collinsville USGS 7.5-minute topographic quadrangle. The nearest populated place is Tootin' Hills, approximately 0.7 miles to the ESE.
Capitol County · Connecticut
Onion Mountain is a summit located in Capitol County, Connecticut. It appears on the Collinsville USGS 7.5-minute topographic quadrangle. The nearest populated place is Tootin' Hills, approximately 0.7 miles to the ESE.