Historic Ordnance Survey map evidence shows Sedgeletch Mill (Corn), the site of a water-driven corn mill adjacent to Moors Burn. Theorigins of the mill are obscure, but buildings at this location are recorded on the Newbottle tithe award map of 1838.The mill was fed by a mill race running some 400 metres from the south. It had been infilled by 1896 and the mill and associated buildings appear to have been replaced with terraced housing. No visible trace of the mill race survives within the area which has recently been re-developed.

Historic Ordnance Survey map evidence shows the Sedgeletch Bridge over the Moor Burn. The existing bridge is a modern concrete structure, however.

The 1st edition Ordnance Survey plan shows ‘The Tile Sheds’, indicating a probable site of tile making, although no actual works are shown.

Newbottle Colliery was opened in 1816 and closed in 1956. There were several other pits - Dolly Pit (sunk in 1811), Dorothea Pit (HER 3123), Margaret Pit (HER 3126) and Success Pit (HER 3127). The colliery was opened by the Nesham family, then taken over in 1819 by the Earl of Durham, and in 1896 by Lambton Collieries Ltd, then Lambton, Hetton and Joicey Collieries Ltd and from 1947 by the National Coal Board. The collieries were linked by 18 miles of private railways. There were several disasters - an explosion on 2 June 1815 killed 57, a boiler burst on 7 August 1815, killing 11. There were explosions on 19 October 1821 (killed 6 miners), 19 November 1824 (killed 11) and 15 June 1832 (killed 12).

Historic Ordnance Survey map evidence shows Mary Pit at this location.

Jane Pit may have been disused by 1858 as it is shown on the 1st edition Ordnance Survey plan as lying on an ‘Old Wagonway’ (HER ref. 3130), and the only internal feature shown is an ‘Old Shaft’.

In 1812, John Nesham built a new six miles long iron-railway to carry coal from his Newbottle Colliery, across East Herrington and to three coal spouts emptying directly into collier brigs at Galleys Gill in Sunderland, avoiding transhipment on to keels. Initially operated solely with horses, in 1814, the railway was the scene of experimentation with locomotive engines. William Brunton’s Iron Horse was used to pull coal on a gradient between the Margaret Pit and West Herrington. In 1815, the boiler of the locomotive exploded, killing 16 people and seriously injuring 40; the world’s first major railway disaster. By 1819, engineered inclined-planes (four) and stationary engines (three) were the main motive power, on the line, propelling rope-hauled coal waggons. Nesham sold the concern in 1822 to John Lambton, from which time it was known as the Lambton Railway. From 1833 it was called the Earl of Durham’s Railway. The early form of the railway is shown in detail on a map of 1817 held at Sunderland Museum. This branch went from Houghton Colliery, (HER 3166), to the Lambton Railway main line (HER 2833).

Historic Ordnance Survey map evidence shows a Reservoir at this location.

This Wagonway connected Success Pit, Success Brickfield, and Margaret Pit (HER ref. numbers 3127, 3125 & 3126, respectively), to the Lambton Railway (HER ref. 2833).

A Wagonway or Railway is marked (as both) on Historic Ordnance Survey maps.This may have been a continuation of the Londonderry Railway (HER ref. 3081), from Painshaw Foundry to Sedgeletch. On the 1st edition Ordnance Survey plan it is marked as ‘Old’, indicating that it was probably out of use by 1858.