9© SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 120 



upon excavation to be unusually extensive and productive. In the 

 limited time available, five trenches 75 feet long were dug at intervals 

 of 200 feet perpendicular to the border of the terrace upon which 

 the site is situated and, in addition, the earth from 145 5- foot squares 

 was removed and screened. Cultural material was found to a depth 

 of as much as 4 feet in two well-defined occupational levels separated 

 by a sterile zone. The upper cultural deposit, like the lower one, is 

 covered by sterile earth, a fact which explains the unpromising sur- 

 face appearance of the site. The lack of any cultural material in the 

 upper deposits of an abandoned meander adjacent to the terrace edge 

 suggests that this feature postdates even the later occupation. 



The upper cultural horizon contained large rock-filled hearths, 

 while the hearths in the lower level were smaller and only part of 

 them were stone-lined. The relatively considerable cultural inven- 

 tories of the two horizons differ in several respects, among which 

 the projectile point differences are prominent. The earlier points are 

 either of the McKean type defined by Wheeler or are similarly basally 

 notched but have proximally constricted edges to create shoulders 

 and a stem. There is no grinding on any of the specimens. The points 

 in the upper level, by contrast, are predominantly corner-notched 

 and convex-sided or triangular and unnotched. Certain other differ- 

 ences in the two levels suggest distinct economic orientations. The 

 later deposits contained mano and metate fragments, numerous mussel 

 shells, and very few bones, while the earlier ones lacked grinding stones 

 and mussels and produced greater quantities of bone, especially of 

 larger forms. 



Productive as the 195 1 excavations were, the evidence is that the 

 parts of the site in which occur the heaviest concentrations of cultural 

 material remain unexcavated. Accordingly, it was decided that addi- 

 tional excavation in the site should be imdertaken in 1952. 



CONCLUSION 



Some measure of the emphasis on and accomplishment of actual 

 salvage operations during 1950 and 1951 is provided by the statistics 

 relating to the basin-wide archeological program. These show that the 

 combined efforts of the River Basin Surveys and other participating 

 agencies resulted in the excavation of 66 sites in 11 reservoirs rather 

 widely distributed in the Missouri Basin. This is in addition to some 

 minor testing in a few other sites which cannot be tabulated because 

 the pertinent figures are not given in certain of the reports on file 

 with the Project. The magnitude of operations varied widely, depend- 

 ing primarily upon the characteristics of the sites in question. Thus, 



