Thornborough Henges

Thornborough Henges are three circular earthworks in North Yorkshire, arranged at equal intervals on a plateau above the River Ure. Each structure measures roughly 240 meters across and consists of a ditch with an outer bank and opposing entrances.

Construction took place between 3500 and 2500 BC during the Neolithic period in northern England. Later generations added burial mounds and settlement traces that extend into the Bronze Age.

The three structures lie along an imagined line pointing toward the summit of Pen Hill, which may have served as a reference point for gatherings. Visitors today find open fields with gently curved earthen banks grazed by sheep, merging into the wide countryside.

The structures lie scattered across private land and farmland, so access is limited and may vary by season. Footpaths nearby offer external views without entering the sites themselves.

The middle structure originally received a layer of white gypsum on its banks, making the monument visible from afar. Researchers believe this pale coating was especially striking under moonlight or at sunset.

Location: West Tanfield

Location: East Tanfield

GPS coordinates: 54.20900,-1.56315

Latest update: December 13, 2025 23:28