208 



expansion, stands a lill! or hutte 100 feet hiijh. of oval outline with diam- 

 eters of one-quarter and three-eights of a mile. (Vig. 10.) It is of sand- 

 stone up to SO feet and the eastern half is capped with 20 feet of boulder 

 clay. The whole arrangement is very suggestive of the ileo-caecal junction 

 of the intestine, in which the hutte i)lays the part of the valve. On the 

 west the expanded valley is hounded hy a cnrxed ridge, through which the 

 Raccoon passes hy a gorge 1,0(H» feet wide between sandstone bluffs 40 feet 

 high. (Fig. 11.) At the village of MansHeld the gorge ends and the valley 

 expands ahruiitly to one mile. In its undst. .just below Mansheld. stands a 



I'lmirc 111. Ipper Man.sholrt Hutlc. 



s(>cond hutte somewhat smaller than the one jtreviously dcsi riiied. Co l\\'\ 

 high, its lowci- hall of sandstone, its upper of glacial clay lull of large 

 boulders. (Fig. 11'. ) 



The mile-wide \alley lloor continues live ndles to I'.ridgi'ton. ( ['"ig. ;!!'>). 

 where it narrows to less than a (piarter of a mile, being jiinched by a 

 terrace on the south side, half a mile wide and two ndles long. In the 

 stream bed and base of the terrace up to '■^~) feet a soft gray micaceous 

 siindstoue is exposed in thin beds dipping to the south. < >n the edge of the 

 terrace an isolated mound of alluvia! sand and gra\el rises to ."i(> feet. 



