Is it really possible?
Posted: May 03 2003 6:26 pm
We have a dear friend that claims to have jogged rim to rim to rim in twelve hours. We do not wish to doubt him, but is this really possible? 

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so by that R-R-R in under 12 is very possible, I guess, not for me!Grand Canyon rim to rim crosssing in under three hours(2:52)