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Arlberg

(Encyclopedia)Arlberg ärlˈbĕrk [key], pass, 5,946 ft (1,812 m) high, W Austria, on the boundary between Tyrol and Vorarlberg. The Arlberg region forms the water divide between rivers flowing to the North Sea and...

Christ of the Andes

(Encyclopedia)Christ of the Andes, statue of Jesus commemorating a series of peace and boundary treaties between Argentina and Chile. Dedicated Mar. 13, 1904, it stands in Uspallata Pass, high in the Andes, on the ...

Transandine Railway

(Encyclopedia)Transandine Railway, former rail line, 156 mi (251 km) long, between Mendoza, Argentina, and Los Andes, Chile, traversing the Andes at Uspallata Pass. Opened to traffic in 1910, the railway rose to c....

Rion

(Encyclopedia)Rion rēônˈ [key], ancient Phasis, river, c.195 mi (310 km) long, rising in the Caucasus near the Mamison Pass, W Georgia, and flowing S and W past Kutaisi into the Black Sea at Poti. Its upper cour...

Zillertal Alps

(Encyclopedia)Zillertal Alps tsĭlˈərtälˌ [key], range of the E Alps astride the Austro-Italian border and extending 35 mi (56 km) NE into the Tyrol. The range rises to 11,555 ft (3,522 m) in the Hockfeiler, on...

Thompson, David

(Encyclopedia)Thompson, David, 1770–1857, Canadian geographer, fur trader, and explorer, b. London, England. In 1784 he came to Fort Churchill, Canada, as an apprentice of the Hudson's Bay Company, and until 1797...

neutrino astronomy

(Encyclopedia)neutrino astronomy, study of stars by means of their emission of neutrinos, fundamental particles that result from nuclear reactions and are emitted by stars along with light. Approximately 100 billio...

McNary Dam

(Encyclopedia)McNary Dam, 7,265 ft (2,214 m) long and 183 ft (56 m) high, on the Columbia River between Oregon and Washington, near Umatilla, Oreg.; built 1947–56 by the U.S. Corps of Engineers. Located at the he...

physician assistant

(Encyclopedia)physician assistant (PA), health-care professional who provides patient services ranging from taking medical histories and doing physical examinations to performing minor surgical procedures; often ca...

The Dalles Dam

(Encyclopedia)The Dalles Dam, 260 ft (79 m) high and 8,875 ft (2,705 m) long, on the Columbia River between Oregon and Wash., NE of The Dalles, Oreg.; built 1952–57 by the U.S. Corps of Engineers. The dam, a majo...