Impossible to know, as humans first saw the Grand Canyon over 10,000 years ago and we have no record of who was the first OR when it was first seen.
The first European to see it did so in 1540.
Approximately 12,000 years ago, when it was discovered.
The first Europeans came many millenia later, in 1540, when Captain Garcia Lopez de Cardenas found The Canyon by accident. Other Europeans stumbled upon it over the years.
Joseph Ives led a scientific, mining survey expedition into the area in 1857, and declared this about The Canyon: "The region last explored is, of course, altogether valueless. It can be approached only from the south, and after entering it there is nothing to do but to leave. Ours has been the first, and will doubtless be the last, party of whites to visit this profitless locality. It seem intended by nature that the Colorado River[sic], along the greater portions of its lonely and majestic way, shall be forever unvisited and undisturbed."
the description is that the grand canyon is the grand canyon is a very large an impetuous mountain that was formed by 6 million years of erosion that formed the grand canyon. first is was soft but year after year it hardened
1pence
The Grand Canyon is dry and arid throughout the year.
Powell did not discover the Grand Canyon, but he led the first known passage through the Canyon in 1869. It was first seen by Europeans in 1540 but had been known by the Native Americans for centuries.
The Grand Canyon is in the US state of Arizona.The Grand Canyon is in northwestern Arizona.
In 1540 by Captain Garcia Lopez de Cardenas.
I Dont Know ! l:<
an average of 5 million visitors visit the grand canyon every year
There were 4,388,386 in 2010. About 4.5 million people visit the Grand Canyon National park each year.
In 1919.
== == The erosional factors that created the Grand Canyon as we see it today are still in motion.
The year was 1869.