Pecos River, a river in New Mexico and Texas. It is about 930 miles (1,500 km) long.
WHAT'S INSIDE: PHYSICAL FEATURES
The physical features of the United States range from deserts & valleys to national parks & landmarks. Learn about the Grand Canyon and other famous areas.
- Deserts and Valleys
- Islands and Coastal Regions
- Lakes and Swamps
- Mountains and Ranges
- National Parks and Landmarks
- Rivers and Waterways
- Other
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Other
Explore some of the other famous physical geographical features of the United States, including Glacier National Park to Niagara Falls.
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FEATURED: PHYSICAL FEATURES
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The Missouri River
Missouri River, one of the largest rivers in North America and a chief tributary of the Mississippi.
Travel the World: 50 States
America is a big ol' place. Did you know that there are 50 states that constitute the United States? If so, you might enjoy this quiz on the 50 states, because that question is about as easy as it's going to get. Strap in and take a cruise around the United States with this HowStuffWorks original quiz.
