The extraction of Greens Coal has been noted in this general area. It is likely that these unlocated coal-workings were used to supply local lime kilns with fuel. Lime kilns are noted in the surrounding area. These were extensively used in the north of the county and would have provided the market for many of the smaller bell pit coal mines of the area. Chemical additions to soil were developed in the 19th century - such as guano and blast furnace slag. However, the plentiful limestone made it unproductive to import these materials into this area.