Well, there might be other landforms that are similar, but there is only one Grand Canyon. If you're referring to the different tourist destinations, you have to go on different roads to get to the north rim and the south rim, but they look over the same immense (grand) canyon. :)
The Grand Canyons are in Arizona.
The Grand Canyon
Yes.
Arizona
The Grand Caynon
it is hot and dry
Yes
The Grand Canyons stretches across Arizona.
the Grand Canyon in Arizona and Hell's Canyon in Idaho. Hell's canyon is the deepest canyon in the US.
nothing
water
volcanoe