Charles Mill Lake Park is situated on 2,000 acres in Richland and Ashland Counties. Charles Mill Dam is a rolled earth fill dam with an impervious, water resistant, clay core that was constructed in 1935-36 on the Black Fork Creek for the purpose of flood control. The lake has a surface area of 1350 acres, a maximum depth of 24 feet and 34 miles of shore line. The lake has a horsepower limit of 10 and provides opportunities for sailing, boating and fishing. The park features two campgrounds (Main Camp and Eagle Point) with a combined total of 457 campsites and three patio cabins.