There is a waterfall that my old friend Dave Hodge and I eventually found, which I think was about 10 miles NE of Leupp on a bumpy and isolated Navajo dirt road. Has anyone ever been there? I think for the most part it's a modest Arizona desert river that has a lot of mountain run-off in the Spring. We were there in April and the waterfall was just beautiful ... If I remember correctly, I think the actual fall may have been about 40 to 50 yards wide and another 40 to 50 yards in a vertical drop.
Aha! I just found some links on Google! Check out these web sites!
http://www.waterfallswest.com/az_grand.html
Here's a photo from the web site above. No water is coming down, but it's fairly large when water is running down!
Here's one more web site that has more photos of Grand Falls.
Just amazing!
http://www.flagstaffcentral.com/Subjects/Nature/Pictures/grandfalls.html
Love, Steve