158 
PHYSICAL GEOGRAPHY 
Perhaps it may be the case that a small fault ranges along the bed 
of W ensleydale : but this is principally to be accounted a valley of 
denudation, whose opposite sides fit remarkably. Heaps of detritus 
lie near Bainbridge, in the angle of Simmer water and the Yore, 
and considerable accumulations of the same kind occupy nearly a 
similar position in the angle between Bishopdale and the Yore. 
The general slope of Wensley dale is moderate: in the upper parts 
it is not excessive. The summit of Helgill Lund (between Edendale 
and Yoredale) is in underset limestone 1210 feet above the sea : the sum- 
mit toward Garsdale near * Lund’s Thorn’ (the tree is no longer there), 
only 1050 feet; but the summit toward Dentdale and Ribblesdale 
(Newby head) about 1300 feet ; Hawes inn (ground floor) is 820 feet, the 
valley there 770 feet ; Bainbridge (the bridge top) 700 feet ; Wensley 
bridge end 400 feet ; Masham inn (ground floor) 339 feet ; the valley 
there about 250 feet. 
Of the lateral valleys it will be enough to mention the slopes of 
Bishopdale and Coverdale. The summit of the former against Wharfe- 
dale is a remarkable neck of land from which the descents are rapid 
each way, formed on the middle limestone of Addleburgh, elevated 
1500 feet above the sea. At Langrigg 730 feet (the hills being 1800 
feet high and precipitous); at Burton 570 feet. Coverdale ends in 
a similar neck of plain land against Kettlewell dale, formed on main 
limestone 1630 teet above the sea (960 feet above Kettlewell inn) ; 
above Dale Head the river is 1123 feet; Bridge on Gammersgill road 
669 feet ; Coverdale abbey 446 feet (river below the bridge). 
Nidderdale . — The two head branches of the Nid, one (the Nid) 
descending straight from Great Whernside, the other (Steen beck) 
from Meugher fell, run with the dip of the strata north-east. After 
this union, the Nid runs due south-east, till it has passed the Greenhow 
anticlinal ridge ; then it turns due east to encounter the magnesian 
limestone at Knaresborough. The slope of the valley is rapid in 
the higher parts and moderate in the lower region. Angram Ford 
