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The Physical Geography of the US and Canada

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Presentation on theme: "The Physical Geography of the US and Canada"— Presentation transcript:

1 The Physical Geography of the US and Canada
According to Mrs. Strotkamp

2 Landforms Mount McKinley (20,320 feet)
Highest Point on North America!!!!

3 Landforms Rocky Mountains
This range stretches more than 3,000 miles across the US and Canada (from New Mexico to Alaska)

4 Landforms The Great Basin cradles Death Valley, the hottest and lowest place in the US!!! Record Temperature =134°F on July 10, 1913!

5 Landforms Nechako Plateau/Fraser Plateau in Canada
Are Colder and Narrower than the plateau areas in the US

6 Landform The Great Plains of the US Located East of the Rockies

7 Landforms Appalachian Mountains- located east of the Mississippi River
North America’s oldest mountain range!! North America’s second longest range (extends from Alabama to Quebec)!

8 Landforms Canadian Shield- located at the edge of the Canadian Plains
It is a giant core of rock centered on the Hudson and James Bays (it anchors North America!!!)!

9 Islands Manhattan Island (New York City)
Major US and world economic center!!

10 Islands Greenland---the world’s largest island!
It is about the size of Alaska and Texas combined!!!!

11 The Continental Divide
Also known as the Great Divide Divides determine which way rivers flow!

12 Rivers Colorado River Rio Grande River
Both have their headwaters (their source) in the Rockies

13 Rivers Mackenzie River
Flows from the Great Slave Lake to the Arctic Ocean---drains much of Canada’s northern interior

14 Rivers The Mississippi River- flows 2,350 miles!!
It begins in Minnesota as a stream (you can jump across it!) and dumps into the Gulf of Mexico. It is one of the world’s busiest commercial ways!!!!

15 rivers St. Lawrence River- flows for 750 miles
Forms part of the border between the US and Canada One of Canada’s most important rivers! The cities of Quebec, Montreal, and Ottawa grew up along the St. Lawrence. These cities depend on it for transportation!

16 Niagara falls Forms the border between Ontario, Canada, and New York state It is a major source of Hydroelectric power!

17 From glaciers to lakes In Northern Canada glacial dams created Great Bear Lake and Great Slave Lake. Giant glaciers moved through the land, carving out the land, and leaving holes and allowing for lakes!!! In the US, the Great Lakes were formed!

18 The Great Lakes—5 of them!
Lake Huron, Lake Ontario, Lake Michigan, Lake Eerie, Lake Superior (HOMES)

19 rivers Rivers have provided links between inland areas and coastal waterways. This has been crucial to economic development. Helped make Chicago a powerful trade and industrial center!

20 Natural resources in the us
Fuels such as oils and natural gas Texas and Alaska have the largest oil reserves in the US. Texas also has the greatest natural gas reserve!

21 Natural resources in canada
Most of Canada’s oil and natural resources lie in or near Alberta Coal in the Appalachians, Wyoming, and British Columbia have been mined for more than 100 years!

22 Minerals Rocky Mountains- gold, silver, and copper
Parts of the Canadian Shield are rich in iron and nickel.

23 timber Forests and woodlands once covered much of the US and Canada.
Today, however, forests cover less than 50% of Canada and about 1/3 of the US. Commercial lumbering is very lucrative! Positive efforts are being made to preserve forests such as planting new trees to replace cut down ones.

24 fishing Very important to the Atlantic Ocean, Pacific Ocean, and Gulf of Mexico As these waters have been overfished, fish supplies have decreased, and the Canadian government banned Cod fishing in 1992.

25 Questions How did glaciers change the physical geography of the US and Canada? What effects did these changes have on those regions’ developments?

26 Climate & Vegetation Northern Climates
Large parts of Canada and Alaska lie in a subarctic zone with very cold winters and lots of coniferous trees. Greenland- has a tundra climate (bitter winters/cool summers) Very few people live in Greenland

27 Climate & vegetation Western Climates Marine West Coast
More than 100 inches of rain fall here each year! You’ll find Coniferous forests, ferns, and mosses here. Southern California has a mild Mediterranean climate. Plateaus, Basins, and Deserts The rain shadow effect keep the area between the Pacific Ranges and the Rocky Mountains hot and dry! Much has a steppe or desert climate. Think Death Valley and the Mojave! You’ll find cacti and wildflowers!

28 Climate & vegetation Mountains
Remember, the higher you are, the colder it gets. (Climate is affected by elevation!!!) Coniferous forests cover the middle elevations of the western mountains. Timberline= the elevation beyond which trees cannot grow.

29 Climate & vegetation Interior climates Prairies
Prairies= naturally treeless expanses of grass In the Great Plains and eastern US, violent Spring and Summer thunderstorms called supercells spawn tornadoes, twisting funnels of air whose winds can reach 300 mph!

30 The dust bowl When dry weather blanketed the Great Plains in the 1930s, the winds eroded unprotected topsoil, reducing farmlands across several US states to a barren wasteland called the Dust Bowl! This ruined the farming economy which was made worse by the Great Depression. Farming has since improved, and the soil has been restored.

31 The dust bowl

32 Climate & vegetation Eastern Climates
Humid Subtropical (southeast; Houston) Have long, muggy summers and mild winters) Florida Everglades Wetlands and swampy areas Hurricane prone coastlines

33 Climate & vegetation Eastern Climate (cont.) Humid continental climate
Extends from the northeastern US into southeastern Canada In Canada, deciduous and mixed deciduous-coniferous forestland sweeps from Newfoundland into subarctic Yukon territory. In the US, deciduous forests grow at the lower elevations in the south.

34 Climate & vegetation Eastern Climates (cont.)
In winter, much of northern North America experiences blizzards with winds more than 35 mph, heavy or blowing snow for 3 or more hours!

35 Climate vegetation Tropical climates
Within the continental US, only the extreme southern tip of Florida has a tropical savanna climate. Hawaii and Puerto Rico have tropical rain forests.

36 Question Describe and explain the environmental factors that have affected migration in the US and Canada. Consider climate and land features.


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