On the northern slopes of Widdale Fell, the seam under the Middle Limestone has been worked eastwards from Mossdale Gill Coal Level for a little over one kilometre. Pits were working here by 1743.
Gill, M.C. “Great Dales Coalfield, Eastern Areas” British Mining No.86 (2008), pp.68-108
Spensley, I.M. Mines and Miners of Wensleydale, The author, 2014