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Chattanooga

(Encyclopedia)Chattanooga chătˌəno͞oˈgə [key], city (2020 pop. 181,099), seat of Hamilton co., E Tenn., on both ...

Red River, rivers, United States and Canada

(Encyclopedia)Red River. 1 River, 1,222 mi (1,967 km) long, southernmost of the large tributaries of the Mississippi River. It rises in two branches in the Texas Panhandle and flows SE between Texas and Oklahoma an...

Oregon Trail

(Encyclopedia)Oregon Trail, overland emigrant route in the United States from the Missouri River to the Columbia River country (all of which was then called Oregon). The pioneers by wagon train did not, however, fo...

Henan

(Encyclopedia)Henan or Honan both: ho͝oˈnänˈ [key], province, c.65,000 sq mi (168,350 sq km), NE China. The capital is ...

Tennessee Valley Authority

(Encyclopedia)Tennessee Valley Authority (TVA), independent U.S. government corporate agency, created in 1933 by act of Congress; it is responsible for the integrated development of the Tennessee River basin. The h...

Las Vegas

(Encyclopedia)Las Vegas läs vāˈgəs [key], city (1990 pop. 258,295), seat of Clark co., S Nev.; inc. 1911. It is the largest city in Nevada and the center of one of the fastest-growing urban areas in the United ...

Johnstown

(Encyclopedia)Johnstown. 1 City (1990 pop. 9,058), seat of Fulton co., E central N.Y.; founded 1772, inc. 1895. Its leather-glove industry dates back to 1800; other leather and knitted goods are also made. Johnson ...

World Heritage Site

(Encyclopedia)World Heritage Site, a place of cultural or natural importance listed on the United Nations Educational, Scientific, and Cultural Organization (UNESCO) World Heritage List. The sites, some natural, so...

Lawrence

(Encyclopedia)Lawrence. 1 City (1990 pop. 26,763), Marion co., central Ind., a residential suburb of Indianapolis, on the West Fork of the White River. It has light manufacturing. 2 City (1990 pop. 65,608), seat of...

water power

(Encyclopedia)water power, mechanical energy derived from falling or flowing water, e.g., rivers, streams, and the overflow of dams. The wooden water wheel, long utilized for driving machinery in flour mills and fa...