Unterwalden is the old name for what is now two cantons in central Switzerland, south of Lake Lucerne. It consists of two half-cantons, an upper part, Obwalden, and a lower part, Nidwalden. Unterwalden was one of the three participants in the 1291 alliance (Federal Charter of 1291) with Uri and Schwyz, considered the origin of the Swiss Confederation.… (More on Unterwalden)