Mille Lacs Kathio State Park, also known as Kathio Site, is a Minnesota state park on Mille Lacs Lake in Onamia.
The park contains 19 identified archaeological sites, including Petaga Point, making it one of the most significant archaeological collections in Minnesota. The earliest site dates to the Archaic period and shows evidence of copper tool manufacture. The Sioux lived in this area roughly until the 18th century. Around the time of contact in the 1850s, loggers came to the area. Over the next 50 years, a large number of trees were clear cut and floated down the Rum River or across Mille Lacs Lake to sawmills.
Nowadays, the area is used for locals and tourists alike for swimming and canoeing on the Rum River and Ogechie and Shakopee lakes. If you love taking in the scenery and aren’t afraid of heights, you can climb the 100 Ft. Fire Tower to get the best panoramic views of the park. In the winter, visitors can cross-country ski on trails or take in a day of sledding on the perfect powder.