<p>Flint bluffs</p>
<p>For thousands of years, people came to the red bluffs above the Canadian River for flint, vital to their existence. Demand for the high quality, rainbow-hued flint is reflected in the distribution of Alibates Flint through the Great Plains and beyond. Today this area is protected by the National Park Service and is the only National Monument in Texas.</p>
<ul><li>Keywords: alfl; National monuments; Prehistoric mining / extraction; Flint</li></ul>
NPS staff
Taken on 4 December 2003
<a rel="nofollow" class="external text" href="https://npgallery.nps.gov/">NPGallery</a>