The Haußelberg is a hill, 119.1 metres (391 ft) above NN, in the Lüneburg Heath in the north German district of Celle.

[2] Another triangle was formed by the Haußelberg, the Falkenberg and Breithorn (Breitenhorn), 117 metres (384 ft) AMSL, south of Unterlüß.

It has to be deduced that these points - the Breithorn, Haußelberg and Falkenberg - which are all hidden by woods today, were then on open, unforested hilltops, probably surrounded by heathland.

Part of the triangulation network used for Gauss's survey was pictured on the reverse side of the 4th series of 10 Deutschmark banknotes.

[3] Whilst he surveyed from the Haußelberg, Gauss lived for 10 days on the farm of von der Ohe in Oberohe (today in the municipality of Faßberg).