Hetton Tunnel, on the North Eastern Railway Durham and Sunderland Branch, (SMR 2994).

Hetton Railway, Eppleton Branch. This ran from the Eppleton Colliery, (SMR 2982), to the Hetton Railway, (SMR 2848). This was a self-acting incline built in 1825. The ropes were removed circa 1900 although the line continued in use until 1959.

Coal Depot on the Hetton Railway Eppleton Branch, (SMR 2985).

High Downs Quarry, with a lime kiln shown on the 1st edition OS mapping.

This quarry, adjacent to the village of Hetton Downs is first marked on the Hetton-le-Hole tithe plan of 1839. It contained a lime kiln and a well, and had rail links with the Eppleton branch of the Hetton Railway. It closed in the 1990s and is now an important nature conservation site.

Eppleton Colliery. First edition OS mapping shows a gingang, gas house and two reservoirs within the site. It was served by the Hetton Railway, Eppleton Branch (HER 2986). The colliery was started in 1825 and produced its first coals in 1833 via the Jane Pit. Caroline Pit was sunk in 1824. There was also a Lindsay Pit. The owners were Hetton Coal Company Ltd in 1825, Lambton and Hetton Collieries Ltd in 1911, Lambton, Hetton & Joicey Collieries Ltd in 1934 and from 1947 The National Coal Board. The workmen in these early years lived in houses built of sod at Low Downs. In the midst of Low Downs Square existed a "Fad" where colliery horses were kept. On 28 January 1836 an explosion killed 22 men. It was caused by a firing of hydrogen gas accumulated by the leaving open of a trap door. The Caroline pit had been abandoned in 1832 but was reopened and deepened in 1853. A surface fire in 1867 caused the death of one man underground. The New Pit or Lindsay Shaft was sunk in 1870. The Jane and Caroline engine houses were built in 1880 and the signal system in the Caroline Shaft electrified in 1883. Whellan records that in 1894 the colliery employed 1100 men and boys underground and 304 above ground. 3000 tons of coal was produced per day. In 1895 3 men died from foul air. In 1925 the Jane Pit was reopened to reach the Busty Seam. In 1911 the pit passed into the ownership of Lambton and Hetton Collieries along with the other pits The pithead baths were opened in 1930. In 1933 the colliery manager, Mr. Stokoe was crushed to death by wagons. On 6 July 1951 9 men were killed in an explosion. The same year the Hawthorn mine complex was started involving Eppleton and Elemore Pits. It was completed in 1958 and was still working in 1978. In March 1986 Eppleton Colliery closed and merged Murton Colliery. 195 fatalities while operational.

Brick Ponds, marked as Old on the 1st edn OS mapping, so were out of use by 1856.

A Reservoir, possibly associated with Copthill Engine, but this is not clear on the 1st edition OS mapping.

Copthill Engine, near the intersection of the Rainton and Seaham, and Hetton Railways, (SMR 2976 and SMR 2848). It may have worked one or both, this is unclear on the 1st edition OS mapping.

Gravel Pit, marked as Old on the 1st edition OS mapping, so was out of use by 1856.