On the crest of the Rocky Mountains, it divides the major river systems into those flowing east and those flowing west
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interior lowlands
Area between the Appalachian & Rocky Mtns.
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pacific coastal ranges
Made up of 2 major mtn. systems which run along the west coast of the US and Canada; a highly volcanic area
\-Mount Rainier -Mount Hood -Mount St. Helens
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coastal plains
A flat, low-lying land adjacent to a sea coastal plain which runs along the East Coast of the US at a distance of about 500 miles (800 km).
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Aleutian Islands
A volcanic archipelago off the coast of Alaska that extends in the Pacific Ocean
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basins
A lower area of land generally surrounded by mountains
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range
An extensive area of open land on which livestock wander and graze.
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Great Plains
The broad expanse of prairie and steppe which lie east of the Rocky Mountains in the United States and Canada
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Canadian Shield
An arc of ancient rock covering nearly half of Canada which is centered around the Hudson Bay; scraped by glaciers
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Appalachian mountains
A mountain range in North America which stretches from Alabama to southeastern Canada
\-Blue Ridge -Catskill -Green Mountain
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Grand Canyon
One of the 1st national parks created by Theodore Roosevelt, it is a colorful steep-sided gorge carved by the Colorado River in Arizona
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Silicon Valley
The southern part of the San Francisco Bay Area in Northern California which specializes in technology
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Mackenzie river
The largest and longest river system in Canada which flows in a northerly direction to the Arctic Ocean
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Niagara Falls
The collective name for three waterfalls that straddle the international border between Canada and the United States
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Great Lakes
A series of interconnected freshwater lakes located primarily on the Canada-United States border (Huron, Ontario, Michigan, Erie, and Superior) connected to the Atlantic Ocean through the St. Lawrence River
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baby boomer
A person born in the years following WWII, when there was a temporary marked increase in the birth rate.
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