Secretary's Report. 1955 



PLATE 1 



[. Operations of River Basin Surveys. Exposed floor areas being taken from top of tal 

 ladder. Rising waters of Fort Randall Reservoir appear in background. 



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2. Operations of River Basin Surveys. Portion of the Oldham site as seen from the 

 ladder. Holes in floor of area in left foreground outline former circular earth lodge 

 Entire site is now under water. 



