Thanks to Keith for pointing out this band of boulders that sits like a tide line across the Walna Scar Road above Seathwaite in the Duddon. It runs north towards the reservoir road and south towards Stickle Pike. The boulders are large and quite rounded which would suggest they have had a bashing. Rocks dropped from crags would be more jagged, and anyway there are no crags in the vicinity. This looks likely to be boulders deposited from the side of the local glacier as it retreated.