RELATIONS OF GRAVEL DEPOSITS 



209 



Their most striking feature is that they are conspicuously divided 

 into two series, one following in a general way each side of the main 

 valley and known to have connected with tlie other only at a single 



I I LAND 

 WATER 



WATER AND ICE 



ONE MILE 



Fig. 3. — Probable conditions during the 140-170-foot stage of the glacial lakelets. 

 (Numbers show locations of plains, and correspond with Hst given in the text.) 



point. It is probable, however, that there were other connections 

 which have not been preserved in the deposits. A second noticeable 

 feature in the eastern series is the confluence at the Winchester Hill 

 lakelet of two rivers, both of which have been traced for some dis- 



