1. Lowest Point - Challenger Deep
Challenger
DeepLocated at the bottom of the Marianas Trench 10,911 m (35,797 ft)
below sea level only three people have ever reached the bottom.
2. Shortest River - Roe River, Montana
The
Roe River that flows between Giant Springs and the Missouri River has
been named by the Guinness Book of World Records to be the shortest
river on Earth at only 200 feet long.
3. Longest Glacier - Lambert-Fisher, Antarctica
Lambert-Fisher, AntarcticaStretching for over 100 miles, this is by far the longest ice flow in the world.
4. Largest Gorge - Grand Canyon, United States
Grand
Canyon, United StatesNearly 220 miles long and more than a mile deep,
the Colorado River is responsible for carving out the worlds largest
gorge.

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