ÿþ<html> <head> <title> United States Geography 2012, CIA World Factbook </title> <META NAME="Description" CONTENT="United States Geography 2012, CIA World Factbook"> <META NAME="keywords" CONTENT="United States, Geography, 2012, CIA, World, Factbook"> <script language="JavaScript"> function AddToFaves_hp(){ var is_4up = parseInt(navigator.appVersion); var is_mac = navigator.userAgent.toLowerCase().indexOf("mac")!=-1; var is_ie = navigator.userAgent.toLowerCase().indexOf("msie")!=-1; var thePage = location.href; if (thePage.lastIndexOf('#')!=-1) thePage = thePage.substring(0,thePage.lastIndexOf('#')); if (is_ie && is_4up && !is_mac) window.external.AddFavorite(thePage,document.title); else if (is_ie || document.images) booker_hp = window.open(thePage,'booker_','menubar,width=325,height=100,left=140,top=60'); //booker_hp.focus(); } //--> </script> <script type="text/javascript"> (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; 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/* WFB Leaderboard */ google_ad_slot = "7548094546"; google_ad_width = 728; google_ad_height = 90; //--> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> </td></tr> <tr height="3" align="left" valign="top" bgcolor="white" nowrap units="pixels"><td colspan="2" align="left" valign="top" height="3" width="972" nowrap bgcolor="white" nowrap> <img src="http://www.theodora.com/wfb2008/images/line1.gif"></td></tr> <tr><td colspan="2" align="middle" background="http://www.theodora.com/wfb2008/images/light_blue.gif" width="972"> <font size="-2"> <br></font> <font face="arial" size="5"><b>United States</b> Geography 2012</font> <br> <font size = "-2"> http://www.theodora.com/wfbcurrent/united_states/united_states_geography.html </font> <br> <font size="-2"><B>SOURCE: 2012 CIA WORLD FACTBOOK AND OTHER SOURCES</B></FONT></td></tr> <tr height="3" align="left" valign="top" bgcolor="white" nowrap units="pixels"> <td colspan="2" align="left" valign="top" height="3" width="972" nowrap bgcolor="white" nowrap> <img src="http://www.theodora.com/wfb2008/images/line13.gif"></td></tr></table> <table border="0" bgcolor="#FFCC99" cellspacing="0" cellpadding="0" width="972" align="left" valign="top" hspace="0" vspace="0" units="pixels"> <tr><td background="http://www.theodora.com/wfb2008/images/light_blue.gif" width="200" valign="top"> <font face="arial"> <br><br> <center> <script type="text/javascript"><!-- google_ad_client = "ca-pub-7437757543052749"; 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/* WFB Large Rectangle */ google_ad_slot = "8137512903"; google_ad_width = 336; google_ad_height = 280; //--> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> <br> Page last updated on February 27, <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#location">Location:</a></b><br> North America, bordering both the North Atlantic Ocean and the North Pacific Ocean, between Canada and Mexico <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#geographic_coordinates">Geographic coordinates:</a></b><br> 38 00 N, 97 00 W <p><b><a href = "http://www.theodora.com/maps/">Map references</a>: </b><br> North America</a> <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#area">Area:</a></b><br> <i>total:</i> 9,826,675 sq km <br>[see also: <a href="http://www.photius.com/rankings/geography/total_area_sq_km_2012_0.html" target="_blank"><u>Area - total country ranks</u></a> ] <br><span style="padding-left:7px;">country comparison to the world: 3 <br><i>land:</i> 9,161,966 sq km <br>[see also: <a href="http://www.photius.com/rankings/geography/land_area_sq_km_2012_0.html" target="_blank"><u>Area - land country ranks</u></a> ] <br><i>water:</i> 664,709 sq km <br>[see also: <a href="http://www.photius.com/rankings/geography/water_area_sq_km_2012_0.html" target="_blank"><u>Area - water country ranks</u></a> ] <br><i> <em>note:</em></i> includes only the 50 states and District of Columbia <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#area_comparative">Area - comparative:</a></b><br> 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 <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#land_boundaries">Land boundaries:</a></b><br> <i>total:</i> 12,034 km <br><i>border countries:</i> Canada 8,893 km (including 2,477 km with Alaska), Mexico 3,141 km <br><i> <em>note:</em></i> US Naval Base at Guantanamo Bay, Cuba is leased by the US and is part of Cuba; the base boundary is 28 km <br>[see also: <a href="http://www.photius.com/rankings/geography/land_boundaries_km_2012_0.html" target="_blank"><u>Land boundaries country ranks</u></a> ] <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#coastline">Coastline:</a></b><br> 19,924 km <br>[see also: <a href="http://www.photius.com/rankings/geography/coastline_2012_0.html" target="_blank"><u>Coastline country ranks</u></a> ] <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#maritime_claims">Maritime claims:</a></b><br> <i>territorial sea:</i> 12 nm <br><i>contiguous zone:</i> 24 nm <br><i>exclusive economic zone:</i> 200 nm <br><i>continental shelf:</i> not specified <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#climate">Climate:</a></b><br> 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 <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#terrain">Terrain:</a></b><br> 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 <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#elevation_extremes">Elevation extremes:</a></b><br> <i>lowest point:</i> Death Valley -86 m <br>[see also: <a href="http://www.photius.com/rankings/geography/elevation_extremes_lowest_point_2012_0.html" target="_blank"><u>Elevation extremes - lowest point country ranks</u></a> ] <br><i>highest point:</i> Mount McKinley 6,194 m <br>[see also: <a href="http://www.photius.com/rankings/geography/elevation_extremes_highest_point_2012_0.html" target="_blank"><u>Elevation extremes - highest point country ranks</u></a> ] <br><i> <em>note:</em></i> the peak of Mauna Kea (4,207 m above sea level) on the island of Hawaii rises about 10,200 m above the Pacific Ocean floor; by this measurement, it is the world's tallest mountain - higher than Mount Everest, which is recognized as the tallest mountain above sea level <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#natural_resources">Natural resources:</a></b><br> coal, copper, lead, molybdenum, phosphates, rare earth elements, uranium, bauxite, gold, iron, mercury, nickel, potash, silver, tungsten, zinc, petroleum, natural gas, timber <br><i> <em>note:</em></i> the US has the world's largest coal reserves with 491 billion short tons accounting for 27% of the world's total <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#land_use">Land use:</a></b><br> <i>arable land:</i> 18.01% <br>[see also: <a href="http://www.photius.com/rankings/geography/land_use_arable_land_2012_0.html" target="_blank"><u>Land use - arable land country ranks</u></a> ] <br><i>permanent crops:</i> 0.21% <br>[see also: <a href="http://www.photius.com/rankings/geography/land_use_permanent_crops_2012_0.html" target="_blank"><u>Land use - permanent crops country ranks</u></a> ] <br><i>other:</i> 81.78% (2005) <br>[see also: <a href="http://www.photius.com/rankings/geography/land_use_other_2012_0.html" target="_blank"><u>Land use - other country ranks</u></a> ] <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#irrigated_land">Irrigated land:</a></b><br> 230,000 sq km (2008) <br>[see also: <a href="http://www.photius.com/rankings/geography/irrigated_land_2012_0.html" target="_blank"><u>Irrigated land country ranks</u></a> ] <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#total_renewable_water_resources">Total renewable water resources:</a></b><br> 3,069 cu km (1985) <br>[see also: <a href="http://www.photius.com/rankings/geography/total_renewable_water_resources_2012_0.html" target="_blank"><u>Total renewable water resources country ranks</u></a> ] <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#freshwater_withdrawal">Freshwater withdrawal (domestic/industrial/agricultural):</a></b><br> <i>total:</i> 477 cu km/yr (13%/46%/41%) <br>[see also: <a href="http://www.photius.com/rankings/geography/freshwater_withdrawal_domestic_industrial_agricultural_total_2012_0.html" target="_blank"><u>Freshwater withdrawal (domestic/industrial/agricultural) - total country ranks</u></a> ] <br><i>per capita:</i> 1,600 cu m/yr (2000) <br>[see also: <a href="http://www.photius.com/rankings/geography/freshwater_withdrawal_domestic_industrial_agricultural_per_capita_2012_0.html" target="_blank"><u>Freshwater withdrawal (domestic/industrial/agricultural) - per capita country ranks</u></a> ] <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#natural_hazards">Natural hazards:</a></b><br> tsunamis; volcanoes; 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 <br><i>volcanism:</i> the United States experiences volcanic activity in the Hawaiian Islands, Western Alaska, the Pacific Northwest, and in the Northern Mariana Islands; both Mauna Loa (elev. 4,170 m) in Hawaii and Mount Rainier (elev. 4,392 m) in Washington have been deemed "Decade Volcanoes" by the International Association of Volcanology and Chemistry of the Earth's Interior, worthy of study due to their explosive history and close proximity to human populations; Pavlof (elev. 2,519 m) is the most active volcano in Alaska's Aleutian Arc and poses a significant threat to air travel since the area constitutes a major flight path between North America and East Asia; St. Helens (elev. 2,549 m, famous for the devastating 1980 eruption, remains active today; numerous other historically active volcanoes exist, mostly concentrated in the Aleutian arc and Hawaii; they include: in Alaska: Aniakchak, Augustine, Chiginagak, Fourpeaked, Iliamna, Katmai, Kupreanof, Martin, Novarupta, Redoubt, Spurr, Wrangell; in Hawaii: Trident, Ugashik-Peulik, Ukinrek Maars, Veniaminof; in the Northern Mariana Islands: Anatahan; and in the Pacific Northwest: Mount Baker, Mount Hood <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#environment_current_issues">Environment - current issues:</a></b><br> air pollution resulting in acid rain in both the US and Canada; the US is the largest single emitter of carbon dioxide from the burning of fossil fuels; water pollution from runoff of pesticides and fertilizers; limited natural freshwater resources in much of the western part of the country require careful management; desertification <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#environment_international_agreements">Environment - international agreements:</a></b><br> <i>party to:</i> Air Pollution, Air Pollution-Nitrogen Oxides, Antarctic-Environmental Protocol, Antarctic-Marine Living Resources, Antarctic Seals, Antarctic Treaty, Climate Change, Desertification, Endangered Species, Environmental Modification, Marine Dumping, Marine Life Conservation, Ozone Layer Protection, Ship Pollution, Tropical Timber 83, Tropical Timber 94, Wetlands, Whaling <br><i>signed, but not ratified:</i> Air Pollution-Persistent Organic Pollutants, Air Pollution-Volatile Organic Compounds, Biodiversity, Climate Change-Kyoto Protocol, Hazardous Wastes <p><b><a href = "http://www.theodora.com/wfb/wfb2000/definitions.html#geography_note">Geography - note:</a></b><br> world's third-largest country by size (after Russia and Canada) and by population (after China and India); Mt. McKinley is highest point in North America and Death Valley the lowest point on the continent </font> <p> <p> <BR> <P> <font size = "-2"><B> NOTE: The information regarding United States on this page is re-published from the 2012 World Fact Book of the United States Central Intelligence Agency. No claims are made regarding the accuracy of United States Geography 2012 information contained here. 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