NO. 10 NEBRASKA ARCHEOLOGY — STRONG 293 



cultures are superficially apparent in Wyoming, it is a marginal area 

 of considerable importance. 



Eastern Colorado is likewise known only from surface surveys/" 

 From these it is apparent that there are numerous aboriginal sites in 

 the region. Pottery is recorded from a number of sites but appears to 

 be neither abundant nor highly specialized. It seems to be predomi- 

 nately grit-tempered, and both plain and cord-marked ware was found. 

 A few sherds show incisions. Straight or flaring rims are reported, 

 but collared rims seem to be rare. One sherd indicating a pointed 

 bottom is mentioned. Renaud is inclined to regard the pottery of this 

 region as a western extension of " typical " Plains pottery and notes 

 that it becomes more complex in type on the South Platte as one 

 approaches Nebraska. On the basis of the available data, however, it 

 is not possible to correlate definitely any of the Colorado sherds with 

 Nebraska culture types, except that certain sherds suggestive of the 

 thick ware on the Dismal River seem to be present. The occurrence 

 of obsidian on many sites in eastern Colorado corresponds to its pres- 

 ence at Signal Butte and elsewhere in western Nebraska. Likewise, 

 the absence of catlinite from prehistoric sites in Colorado is in agree- 

 ment with the late occurrence of this material in Nebraska cultures. 

 Possibly at the other end of the time scale is the occurrence in Yuma 

 County of chipped points closely resembling those reported in associ- 

 ation with extinct bison in Nebraska and elsewhere. These include 

 Folsom, Yuma, and Signal Butte I types. Although found on the 

 surface of the ground in " blowouts ", the Yuma County points in 

 some cases were at least superficially associated with the remains of 

 extinct animals. (Cook, 193 1.) Considering the number of reported 

 associations of this sort in the high plains region, it is probable that 

 actual excavation in Colorado and Wyoming will reveal deposits or 

 habitation sites where such artifacts occur. (Since the above was 

 written the Folsom culture has been found in situ in northeastern 

 Colorado; see Roberts, 1935.) 



It is obviously impossible to institute any specific cultural compari- 

 sons between these regions and western Nebraska at the present time. 

 Such comparisons must come later when more is known about western 

 Nebraska and when enough historic and prehistoric sites have been 

 actually excavated in eastern Colorado and Wyoming to permit the 

 establishment of at least tentative culture groupings for those regions. 

 However, one interesting feature does appear in comparing the known 

 archeology of Nebraska as a whole with the regions immediately to 

 the west. This is the fact that the western border areas alone cor- 



E. B. Renaud, 1931 a, 1932 a, 1933. 



