We have three Indian Mounds on our Ouachita County hunting lease. They were built in line along the old creek path through the woods. We first debated whether or not these were Indian mounds, but the Geological Survey Maps have them listed on the map as "Indian Mounds." The website I reasearched said they were Caddo mounds from the tribe that lived in the Ouachita/Little Missouri valley, trading salt boiled down from high salinity seeps in that area to other tribes. Our lease is only about 10 miles from the confluence of these rivers, so that makes sense. All I know about them is it is against the law to disturb them. Any one else have any experience with Indian Mounds?