Mad River is a stream located in Mercer County, Illinois. It appears on the Joy USGS 7.5-minute topographic quadrangle. The nearest populated place is Keithsburg, approximately 2.2 miles to the SSW.
Mercer County · Illinois
Mad River is a stream located in Mercer County, Illinois. It appears on the Joy USGS 7.5-minute topographic quadrangle. The nearest populated place is Keithsburg, approximately 2.2 miles to the SSW.