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Overview of the United States Geography

Mar 25, 2025

Notes on the United States of America

Geography

  • Location: North America, bordered by:

    • Atlantic Ocean (East)
    • Pacific Ocean (West)
    • Mexico and Gulf of Mexico (South)
    • Canada (North)
    • Alaska between Canada and Russia
    • Hawaiian archipelago in the Pacific Ocean
  • Area: Approximately 9.5 million square kilometers (4th largest country)

  • Population: About 333 million (3rd most populous country)

  • Capital: Washington, D.C. (District of Columbia, not belonging to any state)

  • States: 50 total (48 contiguous states, plus Alaska and Hawaii)

Language

  • No official language; however, English is the de facto language due to widespread use.

Climate and Geography

  • Diversity: Geographically and climatically diverse.

    • Appalachian Mountains (North-South in the East)
    • Florida Peninsula (South)
    • Great Lakes in the Northeast (Lake Ontario, Lake Erie, Lake Huron, Lake Michigan, Lake Superior)
    • Central Lowlands around the Mississippi River and its tributaries (Ohio, Missouri Rivers)
    • Great Plains in the West
    • Rocky Mountains (North-South)
      • Includes Cascade Range and Sierra Nevada in California
      • Rio Grande (border with Mexico, called Rio Bravo in Mexico)
    • Great Basin area between mountain ranges
  • Pacific Region: Seismically active, risk of earthquakes.

  • Hawaiian Islands:

    • 137 islands and atolls, mostly uninhabited.
    • Volcanic origin; largest island called Hawaii.
    • Most population on Oahu (where Honolulu is located).
  • Alaska:

    • Major mountain ranges: Brooks Range and Alaska Range.
    • Denali (Mount McKinley) is the highest mountain in the USA (6,190 meters).
    • Yukon River flows West into the Bering Sea.
    • Aleutian Islands stretch towards Kamchatka.

Climate Zones

  • Northernmost State: Cold due to polar tundra climate.
  • Rest of Alaska: Cold Boreal climate (moderated by sea).
  • Northeastern US: Continental climate (cold winters, warm/hot summers).
  • Great Lakes & New England: Densely forested.
  • Midwest: Heavily farmed plains.
  • Southeast: Subtropical climate (humid summers, swamps in coastal areas & Mississippi Delta).
  • Southern/Eastern Coast: Vulnerable to tropical storms.
  • Mississippi River Basin: Prone to tornadoes.
  • Southern Florida: Humid tropics with high temperatures year-round (Everglades with alligators).
  • Western US: Semi-arid steppe climate, low precipitation.
  • Southwest: Desert climate (hot and dry), includes Mojave Desert and Death Valley (hottest/driest places).
  • Great Basin: Salt plains and the Great Salt Desert.
  • North Coast: Oceanic climate with temperate rainforests (home to redwoods).
  • California: Mediterranean climate.
  • Hawaii: Tropical climate, warm year-round, moderated by winds.

Conclusion

  • This is the first episode on the USA, and more information will follow soon.
  • Thank you for watching!