Woodheugh Quarry.

Quarry, marked as Old on the 1st edition OS mapping, so was out of use by 1858.

Quarry, in Offerton.

Refuse Heaps. The depiction on the 1st edition OS mapping is unclear. The graphic depiction defines the field within which these features lay.

Quarries, possilby three, marked as Old on the 1st edition OS mapping, so out of use by 1858.

Coal Staiths (Nesham's Staith later Eden Main Staith), on the Wear at Painshaw, at the northern end of the Londonderry Railway, (HER 3081). Depicted on Burleigh and Thompson's 1737 map operated by John Hylton and John Nesham, later by Nesham alone (by 1775). Still shown on 1862 OS plan connected to rail tracks.

The First Edition Ordnance Survey plan 1862 shows a building labelled The Main Engine at Waggon Hill. On the 1775 plan there is a coal shaft, surrounding spoil and adjoining building, probably a pumping engine are shown here. A track, with sidings beside the pit ran north to the spout on the Lambton riverbank and probably transported coal from the colliery. Pit may have closed by 1815 - the engine perhaps still functioned to drain the colliery. Perhaps represents Wharton Main Colliery hence the name, the Main Engine, on the 1862 OS plan.

Painshaw Staiths. Depicted on Burleigh and Thompson's 1737 map. Owned by Hilton and Nesham's Esq. Still shown on 1862 OS plan.

The Londonderry Railway from Painshaw Foundry, (HER 3110), to coal staiths on the Wear, (HER 3084). The Londonderry line is interesting for the history of its development and as the only line built to run to the sea. Its origins lay in the problems the 3rd Marquis of Londonderry was experiencing in not only getting his coal to the Wear but also in the punitive duties levied by the river authorities, as a result of which Londonderry developed his own port at Seaham and constructed a rope hauled inclined railway to carry his coals there. The line opened in 1831 and like the Hetton Railway breasted Warden Law on its way to its destination. The whole of the line from Rainton to Seaham was closed in November 1896. The remains of the former engine house survive at Warden Law.
Remains of the rail side ditches and rail bed material from the Londonderry Railway were recorded in a 2017 excavation (ASUD). A ditch lay at the centre of the line of the railway shown on historic maps and may reflect an easement ditch marking the proposed line of the railway prior to its construction. A sandstone culvert was also recorded.

Painshaw Tile Works, on Waggon Hill, beside the Londonderry Railway, (SMR 3081). Possibly same as Pensher tileworks, 1855-1869
(Source: Davison, P J, 1986. Brickworks of the North East,187 site 1)