The National Park Service celebrates its 100th anniversary this year. The government agency oversees more than 400 hundred parks, monuments and historic sites across the country, including the Ocmulgee National Park in Macon, Georgia. The Native American site contains remnants from 17,000 years of Southeastern Native American heritage. The park is most known for the mounds along the fall line of the Ocmulgee River. We learn more about the mounds and what they were used for from Jace Weaver,