GRACE : THE GLACIAL GEOLOGY OF FURNESS. 
417 
no relation to the present drainage. This opens, near Dalton Church, 
into the Dalton Valley — a wide, well cut valley below the 100 
feet contour, joining the Goldmire Valley near Mill Wood, and continu- 
ing southwards with a bend at Furness Abbey until it reaches Roose, 
Overflow Channels from Lake Duddon. 
Below here its present mouth must have been barred by the Irish Sea 
Ice for the glacial channel turns eastwards down a wide valley, now 
dry, and enters Morecambe Bay near Roosebeck. Extensive deposits 
■of water worn gravel are found at about the 100 feet level at Manor 
Park, and on the convex side of the curve at Holebeck. In both cases 
the gravel includes rocks from the Irish Sea Drift as well as from the 
Local Drift. 
