PROCEEDINGS COTTESWOLD CLUB 
150 
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calcareous layers. After a short distance, Old Red Sandstone 
is exposed in the stream, where it dips 64° E. 10° S. 
To the North of these exposures in the stream Ludlow 
sandstones are seen dipping 75° E., and then oM Red Sandstone 
dipping 45° N.E., and one then reaches Llancayo Hill. As has 
been mentioned above, the Wenlock Shales of the Coed-y-paen 
anticline extend northwards along the western foot of this hill, 
but the hill itself is made of Ludlow sandstones, which are 
light green or grey in colour, and are frequently exposed. 
These sandstones run on to the Northern end of the hill, 
where there is a fine camp, beyond which a fault displaces the 
Eastern margin of the Silurian beds some 300 yards to the 
East. 
• 
The upper beds between Cwm Cayo and Llancayo Hill 
Camp seem to correspond with the upper beds of the Ludlow 
series seen in the Coed-y-paen Anticline. They have not yielded 
Dayia navicula. 
IV. (c) THE EXPOSURES BETWEEN LLANCAYO 
HILL CAMP AND HILL FARM. 
To the north of the fault just mentioned, green sandy beds 
of Ludlow age occur close to where the road below the camp 
crosses the stream. They are seen in several places for a 
third of a mile to the North. 
To the South-South-East of Hill Farm are several ex- 
posures in Ludlow sandstones, with calcareous layers and 
nodules, which dip to the North-East and extend in a South- 
Westerly direction up to the Wenlock Shales, from which they 
are separated by a fault. 
To the North of Hill Farm the marginal fault bounding 
the Inlier on its Eastern side seems to be displaced by three 
cross faults. How far westwards any of these extend it is 
impossible to say. To the North-West of the farm the Bettws- 
Newydd drift obscures the Silurian beds, so that one is unable 
to say whether these Eastern Ludlow beds continue to be in 
contact with Wenlock Shales to the North of Bettws-Newydd, 
or whether any Wenlock Limestone occurs there. 
