Cauldron Snout, in Upper Teesdale, is claimed to be England’s longest cascade. Shortly after leaving Cow Green Reservoir, from just downstream of Birkdale Bridge, the River Tees drops approximately 30 m over an outcrop of the Great Whin Sill where it sits above the Melmerby Scar Limestone, to join the Maize Beck in the valley below. This takes place within a horizontal distance of ~140 m. A pre-glacial channel has been identified at the base of the falls, a few metres to the west, indicating what is believed to be the original course of the river. A walker’s trail used by the Pennine Way and the Teesdale Way runs close alongside the eastern side of the falls.
Location NY 814287
Forbes, Ian, et al. Lead Mining Landscapes of the North Pennines Area of Outstanding Natural Beauty. Durham County Council, 2003.
Bulman, Russell. Introduction to the Geology of Alston Moor. North Pennines Heritage Trust, 2004.
“Cauldron Snout.” Wikipedia, Wikimedia Foundation, 25 08 2020, https://en.wikipedia.org/wiki/Cauldron_Snout. Accessed 12 10 2020.