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Florida Keys

(Encyclopedia)Florida Keys, chain of coral and limestone islands and reefs, c.150 mi (240 km) long, extending from Virginia Key, S of Miami Beach, to Key West, and forming the southern extremity of Florida. Between...

Fermanagh

(Encyclopedia)Fermanagh fərmănˈə [key], district, 656 sq mi (1,699 sq km), SW Northern Ireland. Enniskillen is the major town, ...

Bedford, cities, United States

(Encyclopedia)Bedford. 1 City (2020 pop. 13,068), seat of Lawrence co., S Ind.; inc. 1889. Bedford limestone, quarried there and shipped all over the world, was ...

Stamford, town, England

(Encyclopedia)Stamford, town (1991 pop. 18,127), in the Parts of Kesteven, Lincolnshire, E central England, on the Welland River. It is a market town. Products include diesel engines, electrical equipment, bricks, ...

marble

(Encyclopedia)marble, metamorphic rock composed wholly or in large part of calcite or dolomite crystals, the crystalline texture being the result of metamorphism of limestone by heat and pressure. The term marble i...

magnesite

(Encyclopedia)magnesite măgˈnəsīt [key], mineral, magnesium carbonate, MgCO3, white, yellow, or gray in color. It originates through the alteration of olivine or of serpentine by waters carrying carbon dioxide;...

Guadalupe Mountains National Park

(Encyclopedia)Guadalupe Mountains National Park gwäˈdəlo͞op [key], 86,416 acres (34,998 hectares), W Tex. Located in the Guadalupe Mts., the park contains parts of the world's largest and most significant Permi...

Dinaric Alps

(Encyclopedia)Dinaric Alps dīnârˈĭk [key], Ital. Alpi Dinariche, Serbo-Croatian Dinara Planina, mountain system, extending c.400 mi (640 km) along the east coast of the Adriatic Sea from the Isonzo River, NE It...

chalk

(Encyclopedia)chalk, mineral of calcium carbonate, similar in composition to limestone, but softer. It is characteristically a marine formation and sometimes occurs in great thickness; the chief constituents of the...

Rapid City

(Encyclopedia)Rapid City, city (1990 pop. 54,523), seat of Pennington co., SW S.Dak., on Rapid Creek, in an irrigated farm region served by the Bureau of Reclamation's Rapid Valley project; founded 1876 after the d...