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Alibates Flint Quarries National MonumentPhoto of Alibates Flint showing all the different colors
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Alibates Flint Quarries National Monument
History & Culture
 
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NPS Photo
Exposed flint, emerging from the dolomite, dots the landscape between the shallow quarries.
 
Archeological traces of prehistoric Indians homes, workshops, and campsites dot the entire Canadian River region of the Texas Panhandle but few sites are as dramatic as Alibates Flint Quarries. Actually an agatized, or silicafied dolomite, the flint is distinctive for its many bright colors.  This flint comes from a 10-square mile area around the monument but most is concentrated on about 60 acres atop a mesa in the heart of the 1,000 acre monument. More than 700 hundred quarries exist where this flint was dug out by hand. The quarries today are usually round ovals about six or more feet in diameter with depressions in the center.  As soil washes in by rain, and blown in by wind, it fills the once four to eight foot deep holes. Unweathered flint was obtained by digging a foot or more below the surface.  The flint bearing dolomite layers are up to eight feet thick. Tools made from Alibates Flint have been found in many places in the Great Plains and Southwest. It's use dates from 13,000 years ago to about 1870.
 
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A myriad of tools, essential to the survival of prehistoric man, were knapped from the flint obtained from the quarries.
Between 1150 and 1450, Indians identified as the Plains Village Indians, ancestors of Caddo, Pawnee and Wichita Indians, lived here in large permanent villages and smaller, outlying farming and gathering communities. Villages were built of rock-slab houses from one to 100 rooms. Most were single-unit dwellings although some rooms were connected. Architecture of this period featured rectangular, semi-circular rooms with funneled entranceways and stone enclosures. It is believed that extensive severe drought, coupled with raids from aggressive tribes, probably Apache, from the west drove these indians out of this region by the end of the 15th century.
Lake McDonald  

Did You Know?
Lake McDonald is the largest lake in the park with a length of 10 miles and a depth of 472 feet. The glacier that carved the Lake McDonald valley is estimated to have been around 2,200 feet thick.

Last Updated: October 05, 2007 at 12:33 EST