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Mexico Geographic coordinates: 38 00 N, 97 00 W Map references: North America Area: total: 9,826,630 sq km land: 9,161,923 sq km water: 664,707 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; more than twice the size of the European Union 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 28 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 6,198 m Natural resources: coal, copper, lead, molybdenum, phosphates, uranium, bauxite, gold, iron, mercury, nickel, potash, silver, tungsten, zinc, petroleum, natural gas, timber note: the US has the world's largest coal reserves with 491 billion short tons accounting for 27% of the world's total Land use: arable land: 18.01% permanent crops: 0.21% other: 81.78% (2005) Irrigated land: 223,850 sq km (2003) Total renewable water resources: 3,069 cu km (1985) Freshwater withdrawal (domestic/industrial/agricultural): total: 477 cu km/yr (13%/46%/41%) per capita: 1,600 cu m/yr (2000) 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 Environmen
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