The dictionary definition of awesome is:
extremely impressive or daunting; inspiring great admiration, apprehension, or fear.
In reality, there are very few things in this world that truly merit the use of that word. (Yes, that dessert was delicious, but is it awesome—no!)
That being said, the Grand Canon is most definitely awesome! In depth, scale, and magnitude, it most assuredly inspires great admiration, apprehension, and fear.
For the longest time, I simply stood in awe, motionless, staring into the seemingly infinite expanse of canyons, as they weaved both to and fro. I truly don’t know how someone can see something as vast as the Grand Canyon and not see the hand of Yahweh. His creation is awesome!