| Buthier | |
| Source1 Location: | Grandes Murailles glacier |
| Mouth Location: | Dora Baltea in Aosta |
| Mouth Coordinates: | 45.7321°N 7.3403°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Italy |
| Length: | 40km (30miles) |
| Source1 Elevation: | 3000m (10,000feet) |
The Buthier is a mountain torrent in north-west Italy. A left bank tributary of the Dora Baltea, its entire course lies within the Valpelline, a valley in the region of Aosta Valley.
One branch of the river is formed by the Tsa de Tsan Glacier at an elevation of about 2700m (8,900feet); a second by the Grandes Murailles glacier at about 3000m (10,000feet). The river is then dammed to form the Place-Moulin Lake reservoir, after which it passes through the communes of Bionaz, Oyace, Valpelline, Roisan and finally Aosta where it joins the Dora Baltea.
The principal tributaries from the left are:
and from the right:
This article began as a translation from its counterpart in the Italian Wikipedia, specifically from this version