Great find! I tried googling and didnt hit much luck learning more about it. Your guess on the Choctaw seemed pretty right on.
I used to hunt arrowheads a lot when I was a kid. Growing up in upstate NY around Oneida Lake and Onondaga Lake areas, there were a few tribes that used the area almost as a shipping hub due to the natural river and lake systems
Speaking of shipping hub, one of my fathers best friends had an amazing collection!
Anyway, David had an EXTENSIVE collection, both pre civil war, civil war and native american; including a solid gold belt buckle he found on the bank of their pond. Man, keep getting sidetracked, he had so much cool stuff...Him and my father worked for the NPS just outside the DC area and while doing some maintenance on one of the facilities they started chatting up one of the historians about the arrowheads on display. David kind of nonchalantly made a comment about having hundreds of points and described some of them to the guy.
Very interested he asked David if he minded bringing his points in for him to look at, he did, and the Historian couldn't believe his eyes! He begged David to let him borrow them so he could take them to the Smithsonian and show some of his colleagues. Reluctantly he allowed it and after several weeks he brought them back.
Evidently they concluded the area must have been a major gathering/trade area for several Native American tribes. There were points in his collection that simply did not belong, like as far away as Alaska! The historian said David had examples of almost every style of arrowhead, from every tribe in North America. Their theory was these points were collected and traded, tribe to tribe, making their way to the place where he found them. Of course the Historian asked where and David refused to tell him and walked off.
Kind of crappy, at least I thought so, but evidently David wasn't too happy with the Park Service because forced his family off of their land to make it part of NPS property. What I mean by forced is they gave his grandfather a price they determined as fair and allowed him to live in the family home until he passed, but when that day came, all of his belongings had to be removed from the property and it became park property. The guy even had anthropologists from the Smithsonian contacting him asking for the location and he simply refused.
I'd tell you but I'd have to kill you. Lol