Volcanic landscape, not as destructive as sand, requires 500cc plus paddle tire (a must). Best climbing in the States, free but have a spark arresstor in case Mr. Ranger shows up.
This area is 7000 ft alt plus so jet for it. 'Million Dollar Hill" is like 1000ft high and takes some skill to go up and b---s big time to come down!
Flagstaff approx 6 miles west with full support and very friendly folks. Cannot be beat.