n: DySoc.Edin r 



Jehu: Bathymetrical and Geological Survey of Welsh Lakes-Plate V. 



Vol. XL. 



LLTN GWTNANT. 



UNO CONTOUR* FROM THE ORDNANCE SURVE 



HEIGHT OF SURFACE 

 SEA LEVEL. 



•■"*'.. l0 '.^*y / | rt 



A* 





LLYN 



IDWAL. 



* &*.(•»># ^A 



ALTITUDES FROM THE ORDNANCE SURVEY. '/»« 

 HEIGHT OF SURFACE OF WATER ABOVE 





SEA LIVE 



L 1331.4 FT. 



F 





6 tB * J 



J 



vy.- ■ . . . V^-y 

 A . V" / 



A** • • • j/lAI- 



X 



"*^ 



2«fa. 



ff 



Scale 3 inches to 1 mile. 

 Depths in feet. 



