Halfmoon Lake is a lake located in St. Clair County, Illinois. It appears on the New Athens West USGS 7.5-minute topographic quadrangle. The nearest populated place is New Athens, approximately 0.9 miles to the ENE.
St. Clair County · Illinois
Halfmoon Lake is a lake located in St. Clair County, Illinois. It appears on the New Athens West USGS 7.5-minute topographic quadrangle. The nearest populated place is New Athens, approximately 0.9 miles to the ENE.