Some parts of Texas history are prehistoric.
Take the Waco Mammoth Site for example.
Since the first bones were discovered by arrowhead collectors in 1978, the site has gone through a long process to become a national monument. It’s a great field trip, or you can take a video tour.
Historians theorize that the herd of mammoths became trapped in the mud during a flash flood. One especially unique (and sad) feature of the site is that of an adult mammoth attempting to lift a baby to safety. The bones of the juvenile were discovered millenia later, still cradled on the tusks of the older mammoth.