La Grande Béroche is a municipality in the canton of Neuchâtel in Switzerland.

[8] After the merger, La Grande Béroche has an area, as of 2009[update], of 42.25 km2 (16.31 sq mi).

[11] The historical population is given in the following chart:[12] The prehistoric lake shore settlement at Baie De Bevaix, the neolithic funerary and cultural center of Treytel-A Sugiez in Bevaix, Gorgier Castle, the Gallo-Roman settlement at La Béroche and a prehistoric lake shore settlement in Gorgier, La Béroche, a Gallo-Roman settlement, and the neolithic settlement at Port Conty / Tivoli in Saint-Aubin-Sauges, the La Redoute Des Bourguignons, a prehistoric site and hallstatt tumulus in Vaumarcus are all listed as Swiss heritage site of national significance.

The former village at L'Abbaye 2 is about 180 meters (590 ft) from the lake shore and consisted of a number of stilt houses.

The village site covers an area of about 150 by 80 m (490 by 260 ft) and was probably connected to the shore by a foot bridge.

Some stone axes, antler ax handles and pottery fragments have been discovered.

The site was discovered in 1860 by F. Troyon, who originally thought it was a Bronze Age village.

Further excavations in the late 19th and early 20th century found that it was a neolithic site.