Main Page | See live article | Alphabetical index Unterwalden is a region in Central Switzerland. It consists of an Upper part, the canton of Obwalden, and a lower part, the canton of Nidwalden. Unterwalden was one of the three participants in the 1291 alliance with Uri and Schwyz, considered the origin of the Swiss Confederation. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.