Coleman Island is a island located in Mercer County, Illinois. It appears on the Blanchard Island USGS 7.5-minute topographic quadrangle. The nearest populated place is Port Louisa, approximately 1.5 miles to the SW.
Mercer County · Illinois
Coleman Island is a island located in Mercer County, Illinois. It appears on the Blanchard Island USGS 7.5-minute topographic quadrangle. The nearest populated place is Port Louisa, approximately 1.5 miles to the SW.