SHREVEPORT, La. (KTAL/KMSS) – While hiking on the land where early settlers opened the first American trading post with Native Americans (Caddo Nation) in northwest Louisiana, you can easily stumble across tombstones that have become overgrown by the forest high upon a ridgeline that marks the edge of an old channel of the Red River. Covered in decades of soil deposits, and further hidden by layers of fallen leaves, the graves have been hidden by decades worth of overgrowth.