I think 75 years
Yes, the Anasazi.
The Grand Canyon.
The Grand Canyon was listed as a heritage site on the 21st of October 1833. I also believe it was listed is because it was a big part of America's history as the Native Americans lived there for a very long time. Hope this helps ;)
The canyon is 277 miles (446 km) long.
The Grand canyon is a Big Long hole in the ground. So no But you can fly through the Grand Canyon. Many airplane and helicopter tours every day.
The Grand Canyon qualifies as old; it has been around for a long time.
1 second it takes to go to the grand canyon
The Grand Canyon is located in northwestern Arizona.
It is 277 miles long.
6,000,000years
ANSWER:Yes. Millions of years ago. But what caused the grand canyon was the Colorado river, cutting into the soil for a long, long time.