Here is another example of this kind of formation. There was another area that had many of these stand alone types that I did not manage a decent photo from. Interesting hike.
I'm not a big fan of heights so this was the best perspective of this particular canyon I could manage.
Now my wife on the other hand, obviously has no fear of heights. I was nervous just taking this photo. She is sitting just next to a fall off cliff and I used telephoto to be even this close.