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Portland, cities, United States
(Encyclopedia)Portland. 1 City (1990 pop. 64,358), seat of Cumberland co., SW Maine, situated on a small peninsula and adjacent land, with a large, deepwater harbor on Casco Bay; settled c.1632, set off from Falmou...Missouri, state, United States
(Encyclopedia) CE5 Missouri mĭzo͝orˈē, –ə [key], one of the midwestern states of the United States. It is bordered by Illinois, Kentucky, and Tennessee, across the Mississippi River (E), Arkansas (S), Okla...Lewis and Clark expedition
(Encyclopedia)Lewis and Clark expedition, 1803–6, U.S. expedition that explored the territory of the Louisiana Purchase and the country beyond as far as the Pacific Ocean. The men were gathered and in the winte...Rocky Mountains
(Encyclopedia)Rocky Mountains, major mountain system of W North America and easternmost belt of the North American cordillera, extending more than 3,000 mi (4,800 km) from central N.Mex. to NW Alaska; Mt. Elbert (1...Utah , state, United States
(Encyclopedia) CE5 Utah yo͞oˈtäˌ [key], Rocky Mt. state of the W United States. It is bordered by Idaho and Wyoming (N), Colorado (E), Arizona (S), and Nevada (W), and touches New Mexico in the SE, at the Fou...Georgia, state, United States
(Encyclopedia) CE5 Georgia jôrˈjə [key], state in the SE United States, the last of the Thirteen Colonies to be founded. It is bordered by Florida (S), Alabama (W), Tennessee and North Carolina (N), and South ...mountain climbing
(Encyclopedia)mountain climbing, the practice of climbing to elevated points for sport, pleasure, or research. Also called mountaineering, it is practiced throughout the world. Many mountain climbing clubs have...Laos
(Encyclopedia) CE5 Laos läˈōs [key], officially Lao People's Democratic Republic, republic (2015 est. pop. 6,664,000), 91,428 sq mi (236,800 sq km), SE Asia. A landlocked nation, Laos is bordered by China on t...National Parks and Monuments (table)
(Encyclopedia) National Parks and Monuments 1 National Parks and Monuments National Monuments National and International Historic Sites and Historical Parks National Memorials National Battlef...human evolution
(Encyclopedia)human evolution, theory of the origins of the human species, Homo sapiens. Modern understanding of human origins is derived largely from the findings of paleontology, anthropology, and genetics, and i...Browse by Subject
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