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Slave

(Encyclopedia)Slave, river, c.310 mi (500 km) long, Northwest Territories, Canada. It comprises the middle sections of the Mackenzie River system. The river channels the waters of Lake Athabasca and the Peace River...

Cascade Range

(Encyclopedia)Cascade Range, mountain chain, c.700 mi (1,130 km) long, extending S from British Columbia to N Calif., where it becomes the Sierra Nevada; it parallels the Coast Ranges, 100–150 mi (161–241 km) i...

Peace

(Encyclopedia)Peace, river, 945 mi (1,521 km) long, formed by the junction of the Finlay and Parsnip rivers at Williston Lake, N central British Columbia, Canada. It flows east through the Rocky Mts., then generall...

Oswego, city, United States

(Encyclopedia)Oswego ŏswēˈgō [key], city (1990 pop. 19,195), seat of Oswego co., N central N.Y., on Lake Ontario and the Oswego River; founded 1722, inc. as a city 1848. The largest U.S. port on Lake Ontario, i...

Sault Sainte Marie, city, United States

(Encyclopedia)Sault Sainte Marie, city (1990 pop. 14,689), seat of Chippewa co., N Mich., Upper Peninsula, a port of entry on the St. Marys River opposite Sault Ste Marie, Ont.; inc. as a city 1887. A variety of li...

Grosse Pointe

(Encyclopedia)Grosse Pointe grōs point [key], name referring to five residential suburbs of Detroit, Wayne co., ...

Yellowstone

(Encyclopedia)Yellowstone, river, 671 mi (1,080 km) long, rising in NW Wyo., and flowing NE through Mont. to enter the Missouri River near the N.Dak. line; it drains c.70,400 sq mi (182,340 sq km). The Yellowstone ...

Derg, Lough

(Encyclopedia)Derg, Lough lŏkh dĕrg [key], in Ireland. 1 Expansion of the Shannon River, 23 mi (37 km) long and 1 to 5 mi (1.6–8 km) wide, W central Republic of Ireland. On the lake is the republic's first (192...

Averno

(Encyclopedia)Averno əvûrˈnəs [key] [Gr.,=without bird], small crater lake, .6 mi (.9 km) wide, Campania, S Italy, between Cuma and Puteoli, near the Tyrrhenian Sea. Its intense sulfuric vapors, caused by volca...

Lahti

(Encyclopedia)Lahti läˈtē, läkhˈ– [key], city (1998 pop. 96,227), Southern Finland prov., S central Finland. Connected with the southern end of the Päijänne lake system, it is an important lake port as wel...