Yol. 68.] POST-GLACIAL CHANGES IN THE LOWEE DEE VALLEY. 



193 



E-odens Hall is about 2| miles north-north-easfc of Bangor, and' 



some 4 miles, as the crow flies, from the end of the Overton gorge. 



Between Eodens Hall and the sea, the former course of the river 



Seale of Miles 

 12 3 4 



{.The figures indicate 

 mij/imum dej^ih below 

 and maximum height 

 above sea-level of the 

 pre-Glacial floor; those 

 enclosed in rings are 

 absolute, the solid roch 

 having been reached therel 



Fig.3.-SKETCH-MAP 



OF THE 



LOWER DEE 

 VALLEY 



Pre-Glacial River Dee. 



Contours of pre-Glacial surface 

 where determinable . 



^:+ELLESMER] 





OSWESTRY 



. + 



Q T ^. 



.> 



.230 



,200 



appears to lie to the west of the present one (see map, fig. 3). 

 Further, although the Dee flows for the most part on Drift over 

 this reach, yet at Holt and again at Chester it has cut through it 



