Spoil heaps associated with Wath Main Colliery in Rotherham (HSY3184), this was operational between 1873 and 1988 (Gill 2007b) but the spoil heaps and associated railway lines reached the Bolton Ings between 1967 and 1989 mapping. The placename 'Ings' can refer to meadow or pasture (Field 1972, 113). The land along the river Dearne is liable to flooding and has been drained in modern periods; it would have been good land for meadow, which was valuable in the medieval period (Rackham 1986, 334-339). Meadow land was enclosed as part of the 1761 Bolton upon Dearne parliamentary award (date from English 1985). The land is now under redevelopment as a bird reserve. There is no legibility of the former surveyed enclosures or meadows.