 There was no colliery or mine workings in Thornton and it is understood that underground faults made any coal under Thornton unworkable.Some believe that the collieries of Desford and Bagworth failed to mine below Thornton and thus deny it the ravages of subsidence as it may have caused severe damage to the railway or drained the reservoir, this is hearsay.Bagworth Heath Woods now stands on the site of Desford colliery.