pISA^.* IsT ^-^^^ BRAVE SITE — ^WOOD AND WOOLWORTH 31 



Unmodified flakes 

 (203 specimens) 



A sample of stone was saved from each excavated feature. Many 

 of the pieces retained were miused, but some showed minute flaking 

 along one or more edges, indicating that they had been used as cutting 

 tools. Materials included Knife River flint, petrified wood, gray 

 chert, agatized wood, quartzite, and quartz. 



Grooved mauls 

 (5 specimens) 



Each of three granite cobbles, from 87 to 107 mm. long, has a groove 

 pecked around the small diameter of the stone. On two examples the 

 groove encircles the stone; on a third, the groove encircles three- 

 quarters of the stone. Two fragments of much larger mauls are not 

 large enough to permit an estimation of the original extent of the 

 groove. The mauls consist of oval cobbles shaped only by the addi- 

 tion of the pecked groove. Both ends are battered by use, but the 

 stone is not otherwise modified. 



Hammerstones 

 (49 specimens) 



Cobbles and pebbles of granite, siltstone, quartz, and fine-grained 

 sandstone are classed as hammerstones when one or more edges are 

 battered. 



Group 1 {4S specimens). — These hammers are made from oval 

 stones. They are either battered on one or both ends or battered over 

 the circumference of the stone. Lengths range from 39 to 221 mm. 



Group 2 (4 specimens). — In a second group of hammerstones each 

 is nearly circular in outline and has a rectangular cross section. The 

 faces of this group are ground smooth and flat, and they are bat- 

 tered on all edges. One specimen has a small depression pecked into 

 one face. Diameters are from 85 to 110 mm. 



Ground stone spheres 

 (5 specimens) 



Four of these objects are made of a buff siltstone and one is of 

 a reddish-brown concretionary sandstone. The entire surface of the 

 sandstone sphere and of one of the siltstone spheres is smoothed. 

 The remaining specimens are partially smoothed and ground, and 

 may be unfinished pieces. Diameters average 70 mm. 



