Columbia Encyclopedia

Search results

500 results found

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...

Chelan, Lake

(Encyclopedia)Chelan, Lake shəlănˈ [key], 55 mi (89 km) long and from 1 to 2 mi (1.6–3.2 km) wide, located in a deep narrow gorge in the Cascade Range, NW Wash.; third-deepest freshwater lake in the United Sta...

Evans, Oliver

(Encyclopedia)Evans, Oliver, 1755–1819, American inventor, b. near Newport, Del. He joined his brothers in a flour-milling business in Wilmington, and after studying similar earlier devices, he developed, install...

Westerville

(Encyclopedia)Westerville, city (1990 pop. 30,269), Delaware and Franklin counties, central Ohio; inc. 1858. Seed and grain cleaners, fabricated steel, and dairy products are made. Otterbein College is there. Hoove...

flood, in hydrology

(Encyclopedia)flood, inundation of land by the rise and overflow of a body of water. Floods occur most commonly when water from heavy rainfall, from melting ice and snow, or from a combination of these exceeds the ...

Garner, John Nance

(Encyclopedia)Garner, John Nance, 1868–1967, Vice President of the United States (1933–41), b. Red River co., Tex. A lawyer, he served (1898–1902) in the Texas legislature and then (1902) was elected to Congr...

Kovel

(Encyclopedia)Kovel kōˈvəl, Rus. kôˈvĭl [key], Pol. Kowel, city (1989 pop. 67,000), NW Ukraine, on the Tura River. A rail junction and agriculture center, it has food and peat processing plants, railroad shop...

Lansdowne

(Encyclopedia)Lansdowne. 1 Uninc. town (1990 pop. 15,509), Baltimore co., NE Md., a suburb of Baltimore. 2 Borough (1990 pop. 11,712), Delaware co., SE Pa., a residential suburb of Philadelphia; inc. 1893. Paper pr...

reclamation of land

(Encyclopedia)reclamation of land, practice of converting land deemed unproductive into arable land by such methods as irrigation, drainage, flood control, altering the texture and mineral and organic content of so...
 

Browse by Subject