Another walk from 'Lakeland Geology' by Francis, Holmes and Yardley, this one looks at the Seathwaite valley between Seatoller and Seathwaite. The rock is mainly Borrowdale volcanics.
The slabs from across the valley.
The river Derwent flows from the head of the valley towards Derwentwater.
The angular nature of these boulders suggests rockfall rather than glacial moraine, which would be expected to be more rounded. NY 246 133.
But I do wonder what would happen to the tree if someone were to remove the stone…