The Spanish in 1540.
There were 4,388,386 visitors in 2010.
No. The Grand Canyon is not a renewable resource. A renewable resource is one that can be produced for years to come to provide some sort of fuel to humanity. Such as water, oxygen and meat from animals. Minerals --> rocks --> what the grand canyon is made of is not renewable
The Grand Canyon is one and another would be Niagra Falls those are first that come to mind :)
why
The Quakers.
No. The earth's crust is thin compared to the mantle, but it's 30km thick at that region, and the grand canyon does not come close to 30km. Beyond the crust is the mantle, and beyond that is the core.
Much of it comes from the melting winter snows that accumulate in the Rocky Mountains only to melt and head for the sea come spring via the Colorado River.
His discovery was important because he discovered the grand canyon and he was famous for doing that. OK, lets get the facts right. 1, He did not actually discover the Grand Canyon himself. It was a small group of Spanish soldiers and Hopi guides under the command of Captain Garcia Lopez de Cardenas that became the first Spanish/Europeans to see the Grand Canyon. 2, Recent Research has stated that the main body of de Coronado's expedition did not come within 26 miles (42 kms) of the Grand Canyon.
Becaus the flowing water of the Colorado River is a constant source of erosion.
Coronado may have been the first.
Portuguese
In the late 1400s.