[1] The Crestaulta hill near the hamlet of Surin was occupied since at least the early Bronze Age (ca.

Of the rest of the land, 1.5% is settled (buildings or roads) and the remainder (27.6%) is non-productive (rivers, glaciers or mountains).

[3] The historical population is given in the following table:[2] The Crestaulta and Cresta Petschna (a Bronze Age settlement), the necropolis at Surin and the double house at number 30 are listed as Swiss heritage sites of national significance.

[8] Crestaulta is a significant Bronze Age site on a hill about 300 m (980 ft) west of Surin.

2000-1700/1600 BC) and included a number of post holes for simple huts with some attached animal stalls.

The second layer dates from the middle Bronze Age (1700/1600-1500/1400 BC) and consists of massive dry stone walls, however there are no clear house or other building foundations.

This layer also includes numerous animal stalls, a small round "cellar", part of a kiln and fire pits.

The upper layer is also from the middle Bronze Age (1500/1400-1300 BC) and includes an animal stall, a menhir or standing stone and a wooden floor.

Additional excavations have discovered ceramic pots of a style that is now known as the Inner-alpine Bronze Age culture (German: Inneralpinen Bronzezeit-Kultur) or formerly as the Crestaulta-Kultur.