Wishart Mitchell from Durham University will lead this trip to examine the drumlins that can be observed within the upper Tees valley, particularly around Cow Green Reservoir. These drumlins indicate the former existence of an ice centre over Cross Fell and adjacent parts of the Pennine escarpment. From the presence of a number of superimposed drumlins, this ice divide can be demonstrated to have migrated from a more northerly restricted location over westwards towards Cross Fell and Dufton Fell. Understanding the ice dynamics of such centres has been important in developing more accurate reconstructions of the last ice sheet to cover the British Isles.
Meet at 10.30 at Cow Green Reservoir Car Park (OS grid ref NY811308). The activity will last 4-5 hours and involve walking over rough terrain – expect the worst of Pennine weather! Distance to be walked is 12 km. Please bring your own packed lunch.