BTHS Geography Chapter 5

Great Plains
a largely treeless area that continues the ascent of the American interior lowlands to about 4,000 feet
Appalachian Mountains
One of two major mountain chains in the United States and Canada. Both chains run north and south. The Appalachian Mountains extend some 1600 miles from Newfoundland in Canada to Alabama. Can you tell me about Currahee?
Canadian Shield
A geographic area north of the Great Plains. Rocky, mainly flat area covers nearly 2 million square miles around Hudson Bay. It averages 1,500 feet above sea level but reaches over 5,000 feet in Labrador.
Rocky Mountains
West of the Great Plains, are the massive, rugged Rocky Mountain system of the US and Canada. The Rockies are a series of ranges that extend about 3000 miles from Alaska south to New Mexico. Because they are relatively young – about 80 million years old – the Rockies have not been eroded like the Appalachians. Many of their jagged, snow-covered peaks are more than 12,000 feet high. Can you tell me what the 14ers are?
Continental Divide

The line of highest points in the Rockies that marks the separation between rivers flowing eastward (toward the Atlantic) and westward (toward the Pacific).

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Great Lakes

Five Lakes containing 21% of the world’s fresh water, located; on the US / Canadian border from Minnesota to northeastern New York State.;

They are used for transportation, hydroelectric power, irrigation, fresh water, and fisheries.; Eight of the world’s 15 largest lakes are found in this region.

Mackenzie River
Canada’s longest river which is part of a river system that flows across the Northwest Territories to the Arctic Ocean.
Permafrost
Permanently frozen ground – found in the far north of Canada and Alaska (and other far northern climates).
Prevailing Westerlies
Winds that blow from west to east in the middle of the latitudes.
Everglades

Found in south Florida, vegetation of mainly tall grasses and scattered trees – a huge “swampland” that covers some 4,000 square miles.

Technically, the Everglades is not a swamp.; Swamp water is stagnent – not moving.

Water in the Everglades is moving toward the Atlantic Ocean – Marjory Stoneman Douglas identified the Everglades as a

“River of Grass”

Nomads
People who move from place to place… they do not have a permanent home site.
Beringia
A land bridge that once connected Siberia and Alaska.
St. Lawrence Seaway
North America’s most important deep water shipping route, completed jointly by the USA and Canada in the 1950s.  The St. Lawrence Seaway allows ocean ships to travel as far inland as Minnesota, Chicago, and Wisconsin.
Locks

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Sections of waterways, such as the St. Lawrence Seaway and the Panama Canal, where gates are closed, (with a ship inside the gates) and water levels are raised or lowered… acting like a “stairway” for ships to go from the ocean inland with a total vertical rise of over 600 feet.

Example:  The Welland Canal, part of the St. Lawrence Seaway, takes ships around Niagara Falls, moving them from Lake Ontario to Lake Erie, a vertical rise of over 300 feet.

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