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(also Usa) a river in Krasnoiarsk Krai, RSFSR; a right tributary of the Enisei River. The Us is 236 km long and drains an area of 6,880 sq km. It originates in the Zapadnyi Saian and flows southwest through the intermontane Us Basin. It is fed by mixed sources, but predominantly by snow. The mean flow rate 43 km from the mouth is 66 cu m per sec. The river freezes over in November, and the ice breaks up in April or early May. A section of the Abakan-Kyzyl Road (the Us Route) passes along the valley of the middle course of the Us River.
Official name: United States of America
Capital city: Washington, D.C.
Internet country code: .us
Flag description: Thirteen equal horizontal stripes of red (top and bottom) alternating with white; there is a blue rectangle in the upper hoist-side corner bearing 50 small white five-pointed stars arranged in nine offset horizontal rows of six stars (top and bottom) alternating with rows of five stars; the 50 stars represent the 50 states, the 13 stripes represent the 13 original colonies; known as Old Glory; the design and colors have been the basis for a number of other flags, including Chile, Liberia, Malaysia, and Puerto Rico
National anthem: “The Star-Spangled Banner”
National bird: Bald eagle
National mottoes: E pluribus unum (Out of Many, One) and “In God We Trust”
Geographical description: North America, bordering both the North Atlantic Ocean and the North Pacific Ocean, between Canada and Mexico
Total area: 3,794,062 sq. mi. (9,826,630 sq. km.)
Climate: Mostly temperate, but tropical in Hawaii and Florida, arctic in Alaska, semiarid in the Great Plains west of the Mississippi River, and arid in the Great Basin of the southwest; low winter temperatures in the northwest are ameliorated occasionally in January and February by warm chinook winds from the eastern slopes of the Rocky Mountains
Nationality: noun: American(s); adjective: American
Population: 301,139,947 (July 2007 CIA est.)
Ethnic groups: European 81.7%, black 12.9%, Asian 4.2%, Amerindian and Alaska native 1%, native Hawaiian and other Pacific islander 0.2% (note: a separate listing for Hispanic is not included because the United States Census Bureau considers Hispanic to mean a person of Latin American descent, including persons of Cuban, Mexican, or Puerto Rican origin, living in the U.S. who may be of any race or ethnic group - white, black, Asian, etc.)
Languages spoken: English 82.1%, Spanish 10.7%, other Indo-European 3.8%, Asian and Pacific island 2.7%, other 0.7%
Religions: Protestant 52%, Roman Catholic 24%, Mormon 2%, Jewish 1%, Muslim 1%, other 10%, none 10%