Presentation on theme: "Landforms Western Mountains and Plateaus Pacific Coastal Ranges Sierra Nevada Cascade Range Coast Range Alaska Range: Mt. McKinley Tallest Point in N."— Presentation transcript:
Landforms Western Mountains and Plateaus Pacific Coastal Ranges Sierra Nevada Cascade Range Coast Range Alaska Range: Mt. McKinley Tallest Point in N. America Rocky Mountains Link the US and Canada, over 3,000 miles long Cascade Range Sierra Nevada Alaska Range Mt. McKinley 20,320 ft. Great Basin Death Valley: Lowest pt. in N. America Great Basin Death Valley -282 ft.
Interior Lowlands The Great Plains Aka- interior Plains, they can reach up to 6,000 ft of elevation. They may seem flat, but actually slope gradually (10ft/mi) down to the Mississippi River Valley. Breadbasket This is the main grain-growing region of N. America
Eastern Mountains and Lowlands and Lowlands Appalachian Mountains Old worn-down mountains. Extend north into Canada Canadian Shield Area of Bedrock surrounding Hudson Bay Coastal Plains Atlantic and Gulf Appalachian Mountains
Water Rivers from the Rockies Continental Divide Also called the Great Divide. E. of the Divide rivers flow toward the Arctic, Hudson Bay, the Atlantic and the Mississippi River into the Gulf of Mexico. To the west rivers flow into the Pacific Ocean
The Mississippi River System 2,350 miles long, it begins in Minnesota and empties into the Gulf of Mexico. It drains 1,200,000 mi 2 of land. Tributaries of the Miss. Ohio and Missouri Rivers. Mississippi River Ohio River Missouri River Gulf of Mexico Colorado River Columbia Rio Grande
COLORADO RIVER Southwestern US Formation of the Grand Canyon
COLORADO RIVER Main source of irrigation and hydroelectric power for much of the western United States
Eastern Rivers St. Lawrence River One of Canada ’ s most important rivers, it forms part of the U.S./Canadian border. Pittsburgh, PA A place where several rivers merge is called a: Confluence Site Monongahela, Allegheny, and Ohio Rivers St. Lawrence River *Pittsburgh
Confluence: where two bodies of water meet Three Rivers Stadium in Pittsburgh is an area of confluence
ST. LAWRENCE RIVER Useful for trade as a link between the Atlantic Ocean and the Great Lakes
Fall Line Cities The boundary where the higher land of the Piedmont drop to the lower Atlantic Coastal Plain, here rivers break into rapids and waterfalls making ship travel impossible. Philadelphia, PA Baltimore, MD and Washington D.C. Niagara Falls On the Niagara River which forms part of the border between Ontario, Canada and New York State in the U.S. it provides a lot of Hydroelectric power for the region.
From Glaciers to Lakes The Great Lakes Formed by glaciers during the last ice age about 14,000 years ago. St. Lawrence Seaway A series of canals, rivers, and inland waterways linking the Great Lakes with the Atlantic. Lake Superior Lake Michigan Lake Huron L. Erie L. Ontario