^^This is a very nice video about the Grand Canyon^^
The Grand Canyon is 277 miles 446 km long, up to 18 miles 29 km wide and is over a mile 1.83 km 6000 feet deep in places. Nearly two billion years of the Earth's geological history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted by tectonic action.
Evidence suggests the Colorado River established its course through the canyon at least 17 million years ago. Since that time, the Colorado River continued to erode and form the canyon to the point we see it at today.
"Quelle Wikipedia" Die Angabe "Quelle Wikipedia" reicht nicht. Bitte Link und Datum angeben. Sicherstellen, dass die Texte nicht copy/paste sind, sondern mit eigenen Worten formuliert --AjSpang (Diskussion) 10:24, 19. Sep. 2012 (CEST)
Badwarter Basin is an endorheic basin in Death Valley National Park is one of the lowest points in the USA.He is 84.6 miles to the WNW
Badwater is the start of the Badwater Ultra Marathon, at Whitney Portal, the way early for the ascent of Mount Whitney's end (the highest point in the Continental United States), 137 km to the west and 2,634 m higher.
Merced River Waterfalls
The merced river is a river in California. The merced river rises in the southern part of Yosemite National Park. He is a 180 km long tributary of the San Joaquin River. The waterfall has a total height of 739 meters. These three waterfalls are located in the mountains of the Sierra Nevada, with the height they are the highest waterfalls of North America. When little snow falls in the winter, then it may be flowing very little or even no water.
The Grand Canyon of the Yellowstone is a deep gorge. It is 250 to 400 meters deep and 500 to 1300 wide. At the end of the last iceage
The human history of the Yellowstone region goes back more than 11,000 years. From then until the recent past, many groups of Native Americans used the park as their homes, hunting grounds, and transportation routes. Continued these traditional uses of Yellowstone countries, to a little over 200 years ago when the first people of European descent found their way into the park in 1872, a country that has not seen its first hundred years, established Yellowstone as the first national park in the world. A new concept was born and preserve it with a new way for the people and to protect the best of what they did for the benefit and enjoyment of future generations.
Here you can watch a map of the USA, so you can see where for example the Grand Canyon is located.