The Waco Mammoth National Monument is a paleontological site and museum in Waco, Texas, United States where fossils of twenty-four Columbian mammoths (Mammuthus columbi) and other mammals from the Pleistocene Epoch have been uncovered. The site is the largest known concentration of a single herd of mammoths dying from the same event, which is believed to have been a flash flood. A local partnership developed around the site after the initial bone was discovered. The Waco Mammoth Foundation worked in partnership with the city of Waco and Baylor University to develop the site. In 2015, they successfully sought the National Monument designation to bring the expertise of the National Park Service into the partnership. - Source: Wikipedia