202 
PROCEEDINGS COTTESWOLD CLUB 
1920 
Along the north-eastern side of the area there are two more 
tracts in which Wenlock Shales occur. The one borders the 
Woolhope Limestone to the south of Glasshouse. This is a 
marshy tract bounded by the Woolhope Limestone on one side 
and on the other by a fault, beyond which comes the Old Red 
Sandstone on which Glasshouse is built. 
The other is about a mile and a quarter in length, and 
stretches between the Old Red Sandstone at Glasshouse and 
the fault which separates the Trias to the east from the Silurian 
beds. There are only three spots where exposures are now to 
be seen. One is along the sides of a stream which runs through 
Castle Hill Wood, where blue shales with occasional layers of 
calcareous nodules occur. The other two are close to the road 
which goes past Clifford Manor and about half a mile from 
that house. 
Here there is a quarry, now overgrown, and below it in the 
stream bank layers of limestone over greasy shales, while on 
the other side of the road in the bank of a small stream coming 
from the New r ent Woods is muddy shale. The dip is low to 
the west-south-west. 
Owing to the scarcity of exposures it is impossible to tell 
the lie of these rocks, and the presence of calcareous beds 
suggests that a portion of the ground might be mapped as 
W 7 oolhope Limestone. 
5. THE WENLOCK LIMESTONE. 
This, the hardest rock in the Inlier, is responsible for a very 
marked feature wherever it occurs. It causes a ridge with the 
soft Wenlock Shales on the one side and the Ludlow beds on 
the other. 
Such a ridge runs for 3J miles along the western side of the 
Inlier from a point almost due west of May Hill Farm to the 
edge of the Silurian bed to the south-west of Blaisdon. At 
the northern end of this ridge the limestone is cut off by a 
fault, close to w r hich it has a vertical dip, but a short distance 
away it dips at 77 0 west-south-west. As one approaches the 
Ross and Gloucester road the dip swings round to south-south- 
west, and the road and a stream by its side pass through a 
