It took Mother Nature about 17 million years, but it remains a work in progress.
It takes of years for a canyon to form.
how long does it take to build a asimo
how long did it take to build the half moon
how long did it take to build the scottish parliment?
how long did it take to build cabot tower
4 year
10 hours
1 second it takes to go to the grand canyon
About 17 million years.
About a day and a half.
About 17 milllion years.