Spent the weekend in an MCC geology class. Climbed Red Butte and learned about the Moenkopi, and then went down Tanner to the Redwall and talked about the supergroup.

I didn't bring my spray bottle, because I figured no one would be crass enough to write their name on a non-maintained trail. Wrong. Dan, Mogo, and alleged friends thought someone would be impressed at the dearing-do, and wrote all over the Supai rocks just before 75-mile saddle. They are gone now. Even without the spray bottle of doom, you cannot prevail against the Graffitinator.

Lots of interesting rocks. I think I found the tracks of a T-rex, even though all those geology instructors say that they came later: honest now: doesn't it look good ;-)? Asked Dr. Bob how this formed. His answer for almost everything: groundwater.

Windy and cool, but last week it was in the 70's on the rim, so I'm glad it was cool whilst on the exposed Coconino slide.