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Wood Buffalo National Park

(Encyclopedia) Wood Buffalo National Park, 17,577 sq mi (45,525 sq km), in NE Alta., Canada, extending into the Northwest Territories; est. 1922 to protect the only remaining herd of wood bison. It…

North Chicago

(Encyclopedia) North Chicago, industrial city (1990 pop. 34,978), Lake co., NE Ill.; inc. 1909. Its economy is closely intertwined with the neighboring city of Waukegan, which has a harbor on Lake…

Ordos

(Encyclopedia) OrdosOrdosôrˈdōs [key], Mandarin Erdesi, sandy desert plateau region, c.35,000 sq mi (90,650 sq km), Inner Mongolian Autonomous Region, N China; almost encircled by the great northern…

Illinois Waterway

(Encyclopedia) Illinois Waterway, 336 mi (541 km) long, linking Lake Michigan with the Mississippi River, N Ill.; an important part of the waterway connecting the Great Lakes with the Gulf of Mexico…

Damavand

(Encyclopedia) Damavand or DemavendDamavandboth: dĕmˈəvĕnd [key], volcanic cone, 18,606 ft (5,671 m) high, in the Elburz range, N Iran. A permanently snow-covered volcano of recent geologic origin,…

Lahontan, Lake

(Encyclopedia) Lahontan, LakeLahontan, Lakeləhŏnˈtən [key], extinct lake of W Nev. and NE Calif. It was formed by heavy precipitation caused by the Pleistocene glaciers and with Lake Bonneville (see…

Great Sand Dunes National Park and Preserve

(Encyclopedia) Great Sand Dunes National Park and Preserve, 132.4 sq mi (343 sq km), in the San Luis Valley of S Colorado; est. as a national monument 1932, designated a national park 2004. Lying in…

Pleistocene epoch

(Encyclopedia) Pleistocene epochPleistocene epochplīˈstəsēn [key], 6th epoch of the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table). According to a…

Michigan and Huron: One Lake or Two?

It is a widely accepted fact that Lake Superior, with an area of 31,820 square miles, is the world's largest freshwater lake. However, this fact is based on a historical inaccuracy in the…

Fox, river, United States

(Encyclopedia) Fox, river, 176 mi (283 km) long, rising in S central Wis. and flowing SW to within 1.5 mi (2.4 km) of Portage, Wis., on the Wisconsin River, then NE through Lake Winnebago into Green…