Since 1942, the volunteer, membership supported Ocmulgee Mounds Association (OMA) has provided the resources to support the educational & interpretive programs at Ocmulgee Mounds National Historical Park.  OMA strives on a daily basis to bring awareness and recognition to the park.  Ocmulgee Mounds National Historical Park protects and preserves "Lands commonly known as the Old Ocmulgee Fields," which documents a 12,000-year continuum of people in their Middle Georgia environment.