Coordinates: 55°12′29″N 2°31′41″W / 55.208°N 2.528°W / 55.208; -2.528
Kielder Forest is a large forestry plantation in Northumberland, England, surrounding Kielder village and the Kielder Water reservoir. It is the largest man-made woodland in England. Its 250 square miles (650 km2) are three-quarters covered by forest. The majority of the forest lies within The Border Forest Park with the southern tip, known as Wark Forest, lying within Northumberland National Park.
The forest is owned and managed by the United Kingdom Forestry Commission, which initiated the first plantings in the 1920s. During the 1930s, the Ministry of Labour supplied men from among the ranks of the unemployed. Many came from the mining communities and shipyards of North East England. They were housed in one of a number of instructional centres created by the Ministry, most of them on Forestry Commission property; by 1938, the Ministry had 38 Instructional Centres across Britain. The hutted camp in Kielder is now under Kielder Water. Numerous purpose-built villages were also constructed for workers' families, including Stonehaugh.