Columbia Encyclopedia

(Encyclopedia) Noatak National Preserve, 6,569,904 acres (2,660,811 hectares), N Alaska. The preserve is the largest mountain-ringed river basin in the United States that is still virtually unaffected by human activ...

(Encyclopedia) Marañón, river, c.1,000 mi (1,600 km) long, rising in Lake Lauricaucha in the Cordillera Occidental, W central Peru. It flows generally NW, then E across the Andes to join the Ucayali River in NE Pe...

(Encyclopedia) Pierre pēr [key], city (1990 pop. 12,906), state capital (since 1889) and seat of Hughes co., central S.Dak., on the east bank of the Missouri River, opposite Fort Pierre; inc. 1883. Its economy is c...

(Encyclopedia) cichlid sĭkˈlĭd [key], common name for members of the family Cichlidae, more that 1,600 species of spiny-finned freshwater fishes of moderate or small size, native to Africa, S Asia, Mexico, and Ce...

(Encyclopedia) Imeritia ĭmərĭshˈə [key], geographic and historic region, Georgia, in the upper Rion River basin. Kutaisi (the historic capital) and Chiatura are the main cities. Imeritia is an agricultural regi...

(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...

(Encyclopedia)  CE5 Nevada nəvădˈə, –vä– [key], far western state of the United States. It is bordered by Utah (E), Arizona (SE), California (SW, W), and Oregon and Idaho (N). In the 20th cent. the ...

(Encyclopedia) William IV, 1765–1837, king of Great Britain and Ireland (1830–37), third son of George III. He went to sea in 1779, served under Admiral George Rodney in action off Cape St. Vincent (1780), and b...

(Encyclopedia) Pliocene epoch plīˈəsēn [key], fifth epoch of the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), from 5.1 to 2 million years ago. By the beginning of the P...

(Encyclopedia) George IV, 1762–1830, king of Great Britain and Ireland (1820–30), eldest son and successor of George III. In 1785 he married Maria Anne Fitzherbert, a Roman Catholic. The marriage was illegal, ho...