Quote Originally Posted by bvstaples View Post

4) In-Co-Pah - a geological area with fabulous rock formation. Heading east out of San Diego for about 90 miles, the landform changes from mountainous to desert, and In-Co-Pah is the transition area. Geologically young, the land is littered with huge boulders in all manner of interesting formations.
I just drove thru this area 2 weeks ago and I think the best area is called "Devil's Canyon"...simply amazing stuff.

I'd add the Imperial Sand Dunes Rec. Area which is pristine white sand dunes with the Colorado River flowing through it...stunning...just not during the 113 degree heat wave. EEEESH that's hot!