Type: Roman Burg
|Ridge trackway: NNW (23) to Caistor (Lincolnshire)
W (22) to Lindvm
E (20) to Skegness
"Horncastle, in Lincolnshire, may have been a Saxon Shore fort. Stukeley in the early eighteenth century describes its walls as "three or four yards high, and four yards thick. ... It is a perfect parallelogram ... at the corners have been square towers, as they report ; the gates were in the middle of three sides, and I suppose a postern" in the fourth. His Plan shows the area as about 31 acres (Stukeley, It. curiosum, p.30). In point of fact the towers were probably round, and the plan is not quite a parallelogram." (Collingwood, p.49)
The classification of the site as a Saxon Shore Fort would be better described as a Fortified Civil Settlement or Burg, which were also prevalent at the time.