Secretary's Report I960 



Plate 2 







1. Section uf a large cedar {Juniperu^) cut by a Missouri Basin Project-Smithsonian 

 Institution field party in 1958. The tree stood high on the bluffs overlooking the "Grand 

 Detour," the great loop of the Missouri now called the Big Bend. The earliest annual ring 

 dates from ca. A.D. 1770. This log provides a fine illustration of variable tree growth In 

 response to varying rainfall. The drought years of the 1840's and the 1930's are plainly 

 visible. River Basin Surveys. 



2. View of soil profile section In site 39BF2, a deeply burled, multlcomponent site in the 

 Big Bend Reservoir. Soil samples were taken from seven zones In this cut to assist In 

 determining the geologic-climatic periods of the various occupations. River Basin Surveys. 



