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Columbia Plateau
(Encyclopedia)Columbia Plateau, physiographic region of North America, c.100,000 sq mi (259,000 sq km), NW United States, between the Rocky Mts. and the Cascade Range in Washington, Oregon, and Idaho. Most of the p...Nyiragongo
(Encyclopedia)Nyiragongo nyēˌrägôngˈgō [key], active volcano (c.11,400 ft/3,475 m), S Virunga range, in E Congo near the Rwanda border, NE of Lake Kivu and 12 mi (19 km) N of Goma, in S Virunga National Park....Modoc War
(Encyclopedia)Modoc War, 1872–73, series of battles between the Modoc and the U.S. army fought as a result of the attempt to force a group of the Modoc to return to the Klamath Reservation in S Oregon. Beginning ...Límnos
(Encyclopedia)Límnos lĕmˈnŏs [key], island (1991 pop. 17,645), 186 sq mi (482 sq km), NE Greece, in the Aegean Sea near Turkey. It is largely mountainous, with areas of fertile lava soil. Fruits, wine, silk, an...plateau
(Encyclopedia)plateau, elevated, level or nearly level portion of the earth's surface, larger in summit area than a mountain and bounded on at least one side by steep slopes, occurring on land or in oceans. Some pl...Valles Caldera National Preserve
(Encyclopedia)Valles Caldera National Preserve väˈyās [key], 89,766 acres (36,343 hectares), N N.Mex.; est. 2000 by Valles Caldera Trust, transferred to National Park Service 2015. Formerly part of the vast, pri...Devils Tower National Monument
(Encyclopedia)Devils Tower National Monument, 1,347 acres (546 hectares), overlooking the Belle Fourche River, NE Wyo.; it was the first designated U.S. national monument (1906). Devils Tower, 865 ft (264 m) high a...porphyry, igneous rock
(Encyclopedia)porphyry pôrˈfərē [key], igneous rock composed of large, conspicuous crystals (phenocrysts) and a groundmass in which the phenocrysts are embedded. Some authorities consider the expression “porp...Redding
(Encyclopedia)Redding, city (1990 pop. 66,462), seat of Shasta co., N central Calif., on the Sacramento River; inc. 1872. A principal tourist center for a mountain and lake region, it also has lumbering, food-proce...Miocene epoch
(Encyclopedia)Miocene epoch mīˈəsēn [key], fourth epoch of the Tertiary period in the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), lasting from around 24.6 to 5.1 mill...Browse by Subject
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