An extensive scatter of coal working has been noted in this area. These are likely all Post Medieval in date; though they were noted as "Old Coal Pits" in the early Ordnance Survey mapping of the whole area implying their disuse, there was a specifically titled "Etal moor & Slainsfield" working mine in the 1894s. This would have served the local domestic and agricultural needs for coal in the area. Many other mines and bell pits are noted in the north of the county; these were tiny by comparison to the collieries in the south of the county which dominated the market with the advent of the Alnwick-Coldstream railway.