List of extreme points of the United States

This is a list of points in the United States that are farther north, south, east, or west than any other location in the country. Also included are extreme points in elevation, extreme distances, and other points of peculiar geographic interest.

Extreme points in the 50 states: Point Barrow, Ka Lae, Sail Rock, Peaked Island
Extreme points in the contiguous 48 states: Northwest Angle, Ballast Key, Sail Rock, Bodelteh Islands
Extreme points of the U.S. on the North American continent: Point Barrow, Cape Sable, West Quoddy Head, Cape Prince of Wales
Extreme points in all U.S. territory: Point Barrow, Rose Atoll, Wake Island, Peaked Island (red dots); Point Udall, Guam, and Point Udall, USVI are shown as green dots. The International Date Line is shown in yellow.

Northernmost points

Southernmost points

Easternmost points

Westernmost points

Interpretation of easternmost and westernmost

There are three methods for reckoning the eastern and western extremes of the United States.

One method is to use the Prime Meridian as the dividing line between east and west. This meridian running through Greenwich, London, is defined as zero degrees longitude and could be called the least eastern and least western place in the world. The 180th meridian, on the opposite side of the globe, is therefore the easternmost and westernmost place in the world.

Another method is to use the International Date Line as the easternmost–westernmost extreme. On the equinox, the easternmost place would be where the day first begins, and the westernmost is where the day last ends.

Still another method is to first determine the geographic center of the country and from there measure the shortest distance to every other point. All U.S. territory is spread across less than 180° of longitude, so from any spot in the U.S. it is more direct to reach the easternmost point, Point Udall, U.S. Virgin Islands, by traveling east than by traveling west. Likewise, there is not a single point in U.S. territory from which heading east is a shorter route to the westernmost point, Point Udall, Guam, than heading west would be, even accounting for circumpolar routes. The two different Point Udalls are named for two brothers from the Udall family of Arizona; Mo Udall (Guam) and Stewart Udall (Virgin Islands), sons of Chief Justice Levi Stewart Udall of the Arizona Supreme Court, both served as U.S. Congressman.[3]

Highest points

Lowest points

Other points




Extreme distances

Some map projections make diagonal lines appear longer than they actually are. The diagonal line from Kure Atoll, Hawaii, to West Quoddy Head, Maine, is 5,797 miles (9,329 km); and the diagonal from Cape Wrangell, Attu Island, Alaska, to Log Point, on Elliott Key, Florida, is 5,505 miles (8,859 km).

See also


  1. ^ "49th Parallel". Archived from the original on 2016-06-13.
  2. ^ The Milepost 61st edition pg. 626 ISBN 978-1892-15426-2
  3. ^ Donald Winslow Carson; James W. Johnson (2001). Life and times of Morris K. Udall. University of Arizona Press. p. 220. ISBN 0-8165-2049-6.
  4. ^ Mark Newell; Blaine Horner (September 2, 2015). "New Elevation for Nation's Highest Peak" (Press release). USGS. Retrieved September 26, 2015.
  5. ^ "Mount Whitney". NGS Station Datasheet. United States National Geodetic Survey. Retrieved September 9, 2012.
  6. ^ "Mount Whitney". Retrieved September 9, 2012.
  7. ^ The summit elevation of Mount Whitney includes an adjustment of +1.869 m (+6.1 ft) from NGVD 29 to NAVD 88.
  8. ^ "Mount Elbert". NGS Station Datasheet. United States National Geodetic Survey. Retrieved June 21, 2016.
  9. ^ "Mount Elbert". Retrieved June 21, 2016.
  10. ^ "Mauna Kea". Retrieved April 1, 2012.
  11. ^ "About Taos Ski Valley". Taos Ski Valley Chamber of Commerce. Retrieved February 29, 2012.
  12. ^ "USGS National Elevation Dataset (NED) 1 meter Downloadable Data Collection from The National Map 3D Elevation Program (3DEP) - National Geospatial Data Asset (NGDA) National Elevation Data Set (NED)". United States Geological Survey. September 21, 2015. Retrieved September 22, 2015.
  13. ^ Furnace Creek, in Death Valley, California, set the world record for the highest reliably reported ambient air temperature of 134 °F (57 °C), on July 10, 1913. This record has been eclipsed only once, by a questionable reading of 136 °F (58 °C), recorded in 'Aziziya, Libya, on September 13, 1922.
  14. ^ Sounding at 46° 54' 31"N, 86° 35' 52"W, on NOAA chart 14963, Grand Marais to Big Bay Point, scale 1:120,000, 2006. Chart datum (as shown on the chart) is 601.1 feet above mean sea level, at Rimouski, Quebec.
  15. ^ Two identical soundings at 47° 45.2'N, 122° 26.0'W, and 47° 44.6'N, 122° 25.4'W, on NOAA chart 18446, Puget Sound: Apple Cove Point to Keyport, scale 1:25,000, 2005. Chart datum (as shown on the chart) is lower low water.
  16. ^ "Baker Island". Geographic Names Information System. United States Geological Survey. Retrieved February 24, 2009.
  17. ^ "CIA World Factbook: Jarvis Island". CIA World Factbook. Retrieved July 3, 2009.
  18. ^ "The Intel". Condé Nast Traveler. Retrieved 2 October 2018.
  19. ^ The Canyoneers (1 June 2016). "No bay at Border Field State Park for about 7000 years". San Diego Reader. Retrieved 6 April 2017.
    Binkowski, Brooke (8 October 2012). "Friendship Park — A Link Between Two Countries — Opens Again". KPBS. San Diego. Retrieved 6 April 2017. San Diego's Friendship Park, or Border Field State Park, is tucked into the extreme southwest corner of the United States and the extreme northwest of Mexico, with fields on the U.S. side, the city of Tijuana on the other, and the blue Pacific Ocean to the west.
    "Tijuana River National Estuarine Research Reserve Comprehensive Management Plan" (PDF). Office of Coastal Management. National Oceanic and Atmospheric Administration. August 2010. Retrieved 6 April 2017.
  20. ^ National Geographic Society (U. S.); National Geographic (2013). Guide to Scenic Highways & Byways. National Geographic. p. 4. ISBN 978-1-4262-1014-3.
    Victoriah Arsenian (22 December 2015). Moon Pacific Coast Highway Road Trip: California, Oregon & Washington. Avalon Publishing. p. 69. ISBN 978-1-63121-029-7.
  21. ^ [1]
  22. ^ "Park Map Viewer". Retrieved 2 October 2018.
  23. ^ "Adventure". 16 June 2008. Retrieved 2 October 2018.
  24. ^ a b c d e Services, Eastern Region Geography, Information. "Elevations and Distances". Retrieved 2 October 2018.

External links

Aleutian Islands

The Aleutian Islands (; Russian: Алеутские острова; Aleut: Tanam Unangaa, literally "Land of the Aleuts", possibly from Chukchi aliat, "island"), also called the Aleut Islands or Aleutic Islands and known before 1867 as the Catherine Archipelago, are a chain of 14 large volcanic islands and 55 smaller ones belonging to both the U.S. state of Alaska and the Russian federal subject of Kamchatka Krai. They form part of the Aleutian Arc in the Northern Pacific Ocean, occupying an area of 6,821 sq mi (17,666 km2) and extending about 1,200 mi (1,900 km) westward from the Alaska Peninsula toward the Kamchatka Peninsula in Russia, and mark a dividing line between the Bering Sea to the north and the Pacific Ocean to the south. Crossing longitude 180°, at which point east and west longitude end, the archipelago contains both the westernmost part of the United States by longitude (Amatignak Island) and the easternmost by longitude (Semisopochnoi Island). The westernmost U.S. island in real terms, however, is Attu Island, west of which runs the International Date Line. While nearly all the archipelago is part of Alaska and is usually considered as being in the "Alaskan Bush", at the extreme western end, the small, geologically related Commander Islands belong to Russia.

The islands, with their 57 volcanoes, form the northernmost part of the Pacific Ring of Fire. Physiographically, they are a distinct section of the larger Pacific Border province, which in turn is part of the larger Pacific Mountain System physiographic division.

These Islands are most known for the battles and skirmishes that occurred there during the Aleutian Islands Campaign of World War II. The Japanese landings and occupations of Kiska and Attu in June 1942 were the only two foreign invasions of the United States during that war.

Furnace Creek Airport

Furnace Creek Airport (IATA: DTH, FAA LID: L06) is a public airport located 0.75 miles (1 km) west of Furnace Creek, Death Valley, serving Inyo County, California, USA. This general aviation airport covers 40 acres (16 ha) and has one runway. At −210 feet (−64 m) MSL, it is the lowest elevation airport in North America.

Geography of the United States

The term "United States", when used in the geographical sense,

is the contiguous United States, the state of Alaska, the island state of Hawaii, the five insular territories of Puerto Rico, Northern Mariana Islands, U.S. Virgin Islands, Guam, and American Samoa, and minor outlying possessions. The United States shares land borders with Canada and Mexico and maritime borders with Russia, Cuba, and the Bahamas in addition to Canada and Mexico. The northern border of the United States with Canada is the world's longest bi-national land border.

List of geographic centers of the United States

This is a list of geographic centers of each U.S. state. Note that the geographic center of the entire U.S. is northeast of Belle Fourche in Butte County, South Dakota 44°58′N 103°46′W, while that of the contiguous 48 is near Lebanon in Smith County, Kansas 39°50′N 98°35′W. The geographic center of North America lies near Rugby, North Dakota 48°22′2″N 99°59′46″W, though this designation has no official status.

Naalehu, Hawaii

Naalehu is a community in Hawaii County, Hawaii, United States. Naʻālehu means "the volcanic ashes" in Hawaiian. It is the southernmost community with a post office in the 50 states of the United States. (See List of extreme points of the United States.) For statistical purposes, the United States Census Bureau has defined Naalehu as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name. The population was 866 at the 2010 census, down from 919 at the 2000 census.

Peaked Island (Alaska)

Peaked Island is an uninhabited island located in the Aleutian Islands chain in Alaska. It is the westernmost point in the 50 states by direction of travel, and last sunset (at equinox) in U.S. territory. West of it passes the International Date Line, after which come Russian territorial islands.

United States articles
Sovereign states
Dependencies and
other territories

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