NEHL - Coal was mined at the Washington Iron Works complex between the 1850s and the 1890s as part of the wider manufacturing process. Mining coal at the site likely made producing iron goods a lot cheaper given the constant need for fuel.

The Iron Works were ran by the Cook family, who later lived in nearby North Biddick Hall (https://www.northeastheritagelibrary.co.uk/features/north-biddick-hall). It was established in 1858 and utilised coke ovens nearby, probably with coal from here. They manufactured pit headgear, underground wagons, shovels and hardware for collieries.

There were at least 3 shafts on the north west corner of the site. None of them are visible today, as the A195 Northumberland Way was built on the site.