Uri, a canton of Switzerland, bounded N. by Schwytz, E. and S. E. by Glarus and Grisons, S. by Ticino, from which it is separated by the St. Gothard mountains, and W. by Valais, Bern, and Unterwalden; area, 415 sq. m.; pop. in 1870, 16,107, almost all Roman Catholics speaking German. It is one of the three original cantons of the Swiss league, and one of the Four Forest Cantons afterward confederated. It is celebrated for sublime scenery. The Galenstock, the highest peak of the St. Gothard group (12,481 ft.), is near the village of Hospenthal in this canton, and the Uri Rothstock (9,600 ft.) is near the Mythenstein, commemorative of Tell, near the bay of Uri, on the S. E. end of Lake Lucerne. The road over the St. Gothard pass runs through Uri and Ticino and crosses the Reuss, the principal river of the former canton, over many bridges, the most stupendous being the Devil's Bridge (see Devil's Bridge, and Reuss); and it also passes the Urnerloch tunnel or hole of Uri. The new St. Gothard railway tunnel passes near Airolo. This village, Andermatt, and Hospenthal are the best known localities in the Urseren valley, the finest in Uri, which is 9 m. long, 1 m. broad, and 5,000 ft. above the sea.

In the lower part of the valley is the defile of Schöllenen, which was repeatedly contested during the memorable campaign of the allies against Napoleon in 1799. Uri is essentially a pastoral country. It abounds in cattle, sheep, and goats, and produces excellent cheese. Despite the rough climate, nut and other trees flourish in the valleys. The revised constitution of 1850 is purely democratic. The canton forms two districts, that of Uri, formerly part of the see of Constance, and that of Urseren. Capital, Altorf.