Monte Verde in Chile caused an earthquake in modern archaeology. The site is an ancient (Paleoindian) small camp of about 30 people, just about 30 miles inland of the Pacific Ocean. It has produced stone tool artifacts that reliably date a millennium before the accepted
11,500 13,000-years-old first establishment of human occupation of the Americas. Some Monte Verde artifacts could be as old as 33,000 years.
The Gault Site, about 20 miles northwest of Georgetown in Central Texas, and about 250 driving miles inland of the Gulf of Mexico, was a larger and apparently more permanent Paleoindian site. It has yielded many tools and other artifacts that make it a close cousin to Monte Verde. A few artifacts have been found to be 15,000 years old.
Tours are your best bet since the Gault is on secured private property administered by Texas State University. Archaeologist Mike Collins, formerly of the University of Texas, is the boss and he generally conducts the infrequent tours that run $10 a person to help pay for the scientific work at the Gault Site.