In the 1880s a level, called Sedbusk Colliery, was driven into a seam of unknown thickness and worked a small patch of coal, probably for lime burning.
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