Figl 















"I ~ 



EXPLANATION 



Uihshaded area, occupied by ice 



I fjlacia lakes and oivrt'lmrduuL __, 



I WhvrMOfcciobmrtiitneutecliiiurn x,.^ . 



Fig 4 



I 1 1000 to /.WO feel . 



I l«ft?g to /<W rtvy. 



I \Below500 feet 



~- - 





t J-,! r : 



'7 



4#* 



' - ' '"""""",-( ' ; , : 1,.,.„„ l 



^ V r (■ wAM, 



% -.' ^' 



- r 



