Topography and Landforms

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Topography and Landforms
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• In 1804 Meriwether Lewis and William Clark set
  out on an expedition to explore the land between
  the Mississippi River and the Pacific Ocean just
  purchased from France.
• This purchase was called the Louisiana Purchase.

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Section 1

• Topography - the shape of the land, including
  elevation, relief, and landforms.
• Elevation height above sea level
• Relief difference in elevation between highest
  and lowest point
• Landforms feature of topography formed by the
  processes that shape Earths surface

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• The highest elevation that Lewis and Clarks
  expedition took them on was 2,200 meters.
• This location was the Lemhi Pass in the Rocky
  Mountains.

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Landforms- a feature of topography such as a hill
or valley formed by the processes that shape the
earths surface. There are three main types of
landforms. 1. Plains- a landform made up of
nearly flat or gently rolling land with low
relief. A plain that lies along a seacoast is
called a coastal plain. 2. Mountains- A landform
with high elevation and high relief. 3. Plateaus-
a landform that has high elevation and a more or
less level surface
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The two plateau regions Lewis and Clark traveled
through Was the Columbia Plateau and Ozark
Plateau A landform region is a large area where
the topography is made up of one type of
landform. Two landform regions in the book are
the Great Plains and the Rocky Mountains.
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Mountain range- a group of mountains that are
closely related in shape, structure, and
age. Mountain system- the different mountain
ranges in a region Mountain belt- the largest
unit of ranges and systems.
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Interior Plains plain that lies away from the
coast
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Plain
http//www.great-adventures.com/images/tanzania/Un
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Mountain
www.cix.co.uk/gidds/Snaps/America/index.html
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Plateau
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Valley
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