MAN IN THE MISSOURI VALLEY. 



681 



A, where the main tributary creek descends from the apex of 

 a rocky gorge into what is evidently a preglacial portion 

 extending 500 feet from A to C. There is no rock visible in 





Fig. 189 — Front view ot skull and femur bones of Lansing Skeleton, f Courtesy of Records 

 of the Past.) 



the valley from A to C, and the water which in dry weather 

 comes into its head continually disappears in the gravel 

 underneath, whose surface at the entrance of the tunnel is 



Fig. 190 — Side view of skull and femur bones of Lansing Skeleton. (Courtesy of Records 

 of the Past.) 



twenty feet below the rock exposure, while a well a little farther 

 east was sunk to a depth of twenty-four feet without striking 

 rock, and the railroad immediately east of the mouth of the 



