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Actually, the arrowheads are atlatl points, a type of spear or dart-thrower. The bow and arrow was a comparatively recent invention in the Americas and dabes back less than 1,000 years.

The atlatl (rhymes with rattle-rattle) is an Aztec word for the spear-thrower, and ingenious invention which, by effectively lengthening the arm and employing centrifugal force, allowed prehistoric hunters to throw a point-tipped shaft further, and with greater power and accuracy than mere spear-throwing could achieve.

WHERE TO LOOK Persons collecting artifacts should learn how to classify and catalogue their findsl.Frequently, campsites were located on the cut-bank side of a creek -- check out the embankment being carefull not do any serious digging and this can cause more serious erosion. This referrs to small pieces of flint that result from the creation, reshaping and use of artifacts.Where you find such concentrations you can bet this was a campsite or worksite, or both.This painting depicts an Indian using the atlats, or spear-thrower.A copy of a Pecos River pictograph, left, showa a horned shaman, or power fiture, with the atlatl in his right hand and several compound arrows in his left.