Altdorf (Swiss Standard German pronunciation: [ˈaltˌdɔrf] ) is a municipality in Switzerland. It is the capital of the Swiss canton of Uri and retains historic town privileges. It is the place where, according to the legend, William Tell shot the apple from his son's head.
Altdorf is situated on the right (eastern) bank of the Reuss, about 2 kilometres (1.2 mi) south of where the river discharges into the Urnersee, an arm of Lake Lucerne. It is at the junction of two major Alpine passes—Saint Gotthard to the south and the Klausen Pass to the east—and is the last station on the Gotthard railway before the line enters the Gotthard Base Tunnel, the world's longest railway tunnel.