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)