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  2. Geology of the Grand Canyon area - Wikipedia

    en.wikipedia.org/wiki/Geology_of_the_Grand...

    The resulting Grand Canyon Supergroup of sedimentary units is composed of nine varied geologic formations that were laid down from 1.2 billion and 740 million years ago in this sea. [11] Good exposures of the supergroup can be seen in eastern Grand Canyon in the Inner Gorge and from Desert View, Lipan Point and Moran point. [12] [note 1]

  3. Landform - Wikipedia

    en.wikipedia.org/wiki/Landform

    Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, structure stratification, rock exposure, and soil type.Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains ...

  4. Canyon - Wikipedia

    en.wikipedia.org/wiki/Canyon

    The Grand Canyon, Arizona, at the confluence of the Colorado River and Little Colorado River.. A canyon (from Spanish: cañón; archaic British English spelling: cañon), [1] gorge or chasm, is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic time scales. [2]

  5. Glossary of landforms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_landforms

    Canyon – Deep chasm between cliffs; Cape – Large headland extending into a body of water, usually the sea; Carolina bay – Elliptical depressions concentrated along the Atlantic seaboard of North America; Cave – Natural void under the Earth's surface

  6. Geography of the United States - Wikipedia

    en.wikipedia.org/wiki/Geography_of_the_United_States

    Pacific Mountain System – the coastal mountain ranges and features in the west coast of the United States. Denali, previously known as Mount McKinley, in Alaska, is the tallest mountain in North America, at 20,310 ft (6,190.5 m). The Grand Canyon, seen here from Moran Point, is among the most visited locations in the country.

  7. Grand Canyon - Wikipedia

    en.wikipedia.org/wiki/Grand_Canyon

    The canyon itself can act as a connection between the east and the west by providing corridors of appropriate habitat along its length. [145] The canyon can also be a genetic barrier to some species, like the tassel-eared squirrel. [145] The aspect, or direction a slope faces, also plays a major role in adding diversity to the Grand Canyon.

  8. Physiographic regions of the United States - Wikipedia

    en.wikipedia.org/wiki/Physiographic_regions_of...

    Most included all of North America without regard to political subdivision. Fenneman expanded and presented a derivative of this system more fully in two books, Physiography of western United States (1931), [7] and Physiography of eastern United States (1938). [8]

  9. File:Physical Features of North America map by Tom Patterson ...

    en.wikipedia.org/wiki/File:Physical_Features_of...

    English: Description on website: "North America is an ideal continent for physical mapping. The irregular coast, varied terrain, and diverse environments form a cartographic mosaic of colors and textures. Besides being beautiful, these features also tell geographic stories.