SIXTY-SIXTH ANNUAL REPORT 13 



During the investigations he was provided with a base of operations 

 by the University of Denver. 



PreHminary reconnaissance of the eight reservoirs included in the 

 Colorado-Big Thompson project by the University of Colorado was 

 completed in the autumn of 1947* In accordance with recommenda- 

 tions made at that time, the River Basin Surveys arranged for a more 

 intensive survey and the testing of some sites in the Granby Reservoir 

 on the Colorado River in Grand County. That work was carried out 

 during August and September by Robert F. Burgh, field assistant, 

 who was on leave of absence from the University of Colorado Museum, 

 aided by William Woodard and Byron W. Houseknecht, student 

 assistants. Only four sites were located in the area to be flooded, and 

 two of those showed only surface traces of stone chips and a few im- 

 plements. Another consisted of stone circles, presumably tipi rings, 

 but yielded no artifacts. The fourth was a camp site located on the 

 west side of the basin on a terrace adjacent to StiUwater Creek. 

 Trenching of the site produced a variety of cultural remains consisting 

 of hearths, potsherds, stone projectile points, stone scrapers, manos, 

 metate fragments, and animal bones. No traces of house remains 

 were found, and the occurrence of fireplaces at varying depths below 

 the surface suggests that there were repeated but casual occupations 

 of the terrace during successive seasons without any permanent habi- 

 tation. Potsherds from the site were of two kinds, cord-marked and 

 corrugated. The cord-marked is from a cooking ware of Woodland 

 type, while the corrugated undoubtedly came from the Northern 

 Periphery of the Southwest. The pottery indicates that the site 

 probably dates between A. D. 900 and 1300. The bulk of the material 

 obtained there shows that the affiliations were clearly with the pre- 

 historic Plains cultures, particularly those responsible for the camp 

 sites along the foothills in northeastern Colorado. 



Conclusions, based on the results of the work in that area, are that 

 no fiu-ther investigations are warranted in the Colorado-Big Thomp- 

 son project unless construction operations accidentally uncover un- 

 suspected remains. West of the Continental Divide there are no 

 sites as good as the one examined in the Granby Reservoir, while east 

 of it there are numerous examples outside the reservoir basins which 

 not only appear to have the same cultural identity as those within 

 them but to offer greater promise. 



Columbia Basin. — Work in the Columbia Basin was based on the 

 field headquarters at Eugene, Oreg., where office and laboratory space 

 was provided by the University of Oregon. Dr. Philip Drucker, on 

 detail from the Bureau of American Ethnology, continued to direct 

 the program until October 1 when he returned to Washington and his 

 regular duties prior to being granted military leave beginning October 



