y growth, low
unemployment and inflation, and rapid advances in technology.

Geography United States

Location:
North America, bordering both the North Atlantic Ocean and the
North Pacific Ocean, between Canada and Mexico

Geographic coordinates:
38 00 N, 97 00 W

Map references:
North America

Area:
total: 9,631,418 sq km
land: 9,161,923 sq km
water: 469,495 sq km
note: includes only the 50 states and District of Columbia

Area - comparative:
about half the size of Russia; about three-tenths the size of
Africa; about half the size of South America (or slightly larger
than Brazil); slightly larger than China; about two and a half times
the size of Western Europe

Land boundaries:
total: 12,034 km
border countries: Canada 8,893 km (including 2,477 km with Alaska),
Mexico 3,141 km
note: US Naval Base at Guantanamo Bay, Cuba is leased by the US and
is part of Cuba; the base boundary is 29 km

Coastline:
19,924 km

Maritime claims:
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: not specified

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

Terrain:
vast central plain, mountains in west, hills and low mountains in
east; rugged mountains and broad river valleys in Alaska; rugged,
volcanic topography in Hawaii

Elevation extremes:
lowest point: Death Valley -86 m
highest point: Mount McKinley 6,194 m

Natural resources:
coal, copper, lead, molybdenum, phosphates, uranium, bauxite, gold,
iron, mercury, nickel, potash, silver, tungsten, zinc, petroleum,
natural gas, timber

Land use:
arable land: 19.13%
other: 80.65% (2001)
permanent crops: 0.22%

Irrigated land:
214,000 sq km (1998 est.)

Natural hazards:
tsunamis, volcanoes, and earthquake activity around Pacific Basin;
hurricanes along the Atlantic and Gulf of Mexico coasts; tornadoes
in the midwest and southeast; mud slides in California; forest fires
in the west; flooding; permafrost in northern Alaska, a major
impediment to development

Environment - current issues:
air pollution resulting