It's OLD, man....that river didn't do that work in a few thousand years.

...and it will be there LONG after all the religious fundamentalists who date things by strange interpretations of old manuscripts have become part of the layers of sediment!

And God said, "LET there be blind, ignorant quackery."...and LO!

I wonder who...that is, precisely which individual, ordered the park service to put on it's namby-pamby uniform and dance around on heads of pins to placate fools!