I just finished reading a report on a flint workshop discovered along the sandy s**** of Lone Tree Lake in Goliad County, Texas. The site is located seven miles south of the town of Goliad and two miles west of the San Antonio River. The site is approximately 150 yards long by 50 yards wide. The sand is 4 to 5 feet deep with lithic debris, chips, flakes, arrowpoints, spearpoints, blades and a variety of assorted tools throughout the sandy layer down to the clay hardpan.
The report was written in 1891 by the Curator of Prehistoric Archaeology at the National Museum in Washington D.C. Google maps shows a number of unnamed dry lakes in that area. I wonder if they found all the points on that site.

Very interesting. I'm a bit surprised to see how long ago scientists would actually take the time to DIG for
Indian" artifacts. That far back we assume there was
so little interest ( not long before they were shooting
buffalo and Indians to get rid of them ) in common Indian artifacts.
Good lead for anyone that can get a hunting permit from the owner to explore.
Tough sluggin in sand though