Note to the state of Pennsylvania in 1955 (and we'll re-check the yearbook later to see if our message got through to them in the past): it's great to be proud of your canyon, and there's no need to draw an unneccessary comparison to a grander, much more famous canyon that can only belittle yours. In fact, give your canyon a wholly different sort of name, so that folks aren't triggered to make the unflattering comparison.
From Mansfield's 1955 yearbook.