Kincaid Mounds Archaeological Site is 4 miles south of Unionville Road on New Cut Road, Brookport, IL. Kincaid Mounds State Historic Site is a nationally significant Native-American archaeological treasure. From about 800 AD to 1500 AD it was the ‘capital' of a chiefdom that stretched from Brookport to Hamletsburg along the Ohio River. Large flat-topped mounds were erected on which the houses and temples of civil and religious elite stood. Today, the mounds still exist and a constructed overlook platform and interpretive panels tell the story of the significant contribution and historical value of this Native American Site.