...Barely tolerable, I daresay...

I broke my damn temp crown again.  Crapola!  And it broke at the same, exact spot again.  I guess it's a V, V good thing I had the prep done.  Who knows when the damn tooth would have done the same thing.  Now, granted a tooth is much tougher than a temp, but...  At least it's not sharp and slicing and dicing this time.  I'll live with it until Fri if possible. 

I've been watching shows on geology tonight.  I had no idea there used to be a mountain range at the Great Lakes and that glaciers ground them down to their roots.  I remember my earth sciences class in 8th grade with fondness.  I don't remember that being a subject back then.  I also don't remember the subject of Yellowstone being known as a supervolcano.  Is this stuff I missed or is this all new knowledge?  Maybe living 20 miles from the San Andreas Fault has piqued my interest further? 

This is a cut for the 14 fwy in Palmdale that goes through a portion of the fault.  I've climbed around on the opposite side of the cut and the rocks there are facinating.  You can see what pressures have done to them.