Kukesburg, Archaeological site in Springe, Germany

Kukesburg is a former hillfort on a western spur of the Nesselberg ridge between Altenhagen I and Brünnighausen. Its oldest phase is an oval rampart-and-ditch ring dated to about the 3rd century BC; a later section combines a roughly 2 m high, 1.5 m thick stone wall with an earthen rampart behind it, enclosing 150 × 100 m within a pointed ditch. The gate was set between four large rock blocks, whose cut holes held its timber frame.

The site was built in several phases, with the oldest ring of wall and ditch dated to around the 3rd century BC. A later section combined a stone wall about 2 m high and 1.5 m thick with an earth rampart, enclosing an area of 150 by 100 m; this part is dated to the 9th–10th century. The name Kukesburg, first recorded in 1007, derives from Kukswall, meaning border wall, as the site lay on the boundary between the Saxon Engern and Ostfalen and later between the bishoprics of Minden and Hildesheim.

The name Kukesburg derives from Kukswall, meaning border wall, as the site lay on the boundary between the Saxon Engern and Ostfalen and later between the bishoprics of Minden and Hildesheim. Folk tradition also called it Hünenburg, after a legend that giants (Hünen) once dwelled there.

The wall remains are largely covered by earth, and the site has not been archaeologically excavated, so the layout is hard to read on the ground. The quarry cut into the fort area at the end of the 19th century, and an underground passage runs beneath the eastern rampart toward the "Weißen Bruch".

The fort was never permanently inhabited; it served as a refuge castle in wartime. Its name derives from "Kukswall", meaning border wall, as it lay on the boundary between the Saxon Engern and Ostfalen. A rock group was built into the defences: the gate sat between four large stone blocks, whose cut holes held its timber frame.