• Mound City Group visitor center and mounds in mid-summer

    Hopewell Culture

    National Historical Park Ohio

Environmental Factors

MCG Summer Rainbow

A rainbow arches over Mound City Group after a summer storm

NPS/Tom Engberg

The park lies in the south central Ohio area, about a one hour drive south of Columbus. This puts the park in a humid continental zone with a generally temperate climate. Winters are mildly cold with average temperatures around 30 degrees (F). Summers are hot and humid with an average temperature around 75 degrees (F). Average annual total rainfall is just under 38". Snowfall in the winter is generally light with an average total snowfall of less than 24".

Did You Know?

Pink heelsplitter mussel

Freshwater mussels were an important resource for Hopewellian people. They were used as food, provided pearls for ornaments and shells were utilized for hoes. Although plentiful during the Middle Woodland period, over-harvesting and low water quality have reduced their numbers drastically today. Many freshwater mussels are on the State and Federal Endangered Species list. More...