Up the Hawsen Burn to Goldscleugh

Our objective is to examine the different types of ‘granite’ on the uplands above the Hawsen Burn and in the upper reaches of the College Valley around Goldscleugh where the northern ‘granite’ meets the andesite. On the climb up past Hawsen Crags we have an excellent view of a pair of stonechats. The torrential rain of November and December 2015 has gouged out a ditch by the path to a depth of at least a metre (NT93932 23084). In this gulley we find plenty of breccia which may perhaps be bedrock. One piece in particular consists of rather fine banded agate which has obviously been formed before brecciation and then cemented together again with more silica. This may be evidence for the location of one of the elusive volcanic vents.
The summit plateau before descending to Goldscleugh offers splendid views of the upper College Valley. The terrain is peat bog, and what few rocks appear are of the pink porphyritic type, some coarser, some finer grained. We descend to the Lambden Burn. Ian explores along the streambed in an easterly direction, and confirms the geological survey that tongues of ‘granite’ penetrate the andesite on the north side of the burn.
We stop to examine the rocks at the southerly branch of the head of the Lambden Burn. Ian discovers an outcrop (NT 92655 22523) which closely resembles the Evolved granular granite on the upper slopes of Cheviot. We contemplate the nearby Woolhope Crag but decide to leave that for another expedition.
As we return down the Hawsen Burn, Ian branches off to examine the Hawsen Crag (NT 94797 23216).