1. Major Geographic Landforms of the U.S. Can you locate the Appalachian Mountains, the Rocky Mountains, The Grand Canyon, and the Coastal Ranges?

2. The Grand Canyon (Southwest Region) The Grand Canyon is a very colorful, steep-sided gorge, carved by the Colorado River, in the U.S. state of Arizona. It is largely contained within the Grand Canyon National Park.

3. How big is the Grand Canyon? The Grand Canyon is very deep - in places it is over a mile deep. The canyon, created by the Colorado River cutting a channel over millions of years, is about 277 miles long, and ranges in width from 0.25 to 15 miles.

4. MISSISSIPPI RIVER (Midwest and Southeast Regions) A Mississippi Riverboat A bridge across the Mississippi. Shipping on the Mississippi The Mississippi River is about 2,552 miles long and ranges from 20 feet to 4 miles wide. 78% of the world's exports in feed grains and soybeans are shipped down the Mississippi to the port in New Orleans.

5. Rocky Mountains (Western Region) The Rocky Mountains stretch more than 3,000 miles from British Columbia, in Canada, to New Mexico, in the United States.milesBritish ColumbiaCanadaNew MexicoUnited States The highest peak is Mount Elbert, in Colorado, which is 14,440 feet above sea level.Mount Elbert Colorado

6. Appalachian Mountains (Northeast and Southeast Regions) The Appalachian Mountains are 1,600 miles long and extend from Quebec, Canada to Alabama. Mt. Mitchell, in North Carolina, is the highest peak in the Appalachians. It is 6,684 feet above sea level.

7. The Great Salt Lake (West) The Great Salt Lake contains five billion tons of salt and other minerals. The Saltair Resort and Amusement Park. The Great Salt Lake is the largest salt lake in the Western Hemisphere. salt lakeWestern Hemisphere Water can only leave the lake by evaporation which makes the lake very salty—saltier than sea water.