Never done any rock crawling. I have always been too afraid to scratch up my DD. I have heard some folks tell of areas in Red Sands, near Hueco Tanks, and the west side cliffs in the east valley just south of McGregor Range providing some all day entertainment for those with beadlocks on their tires who like to run low air pressure. Problem is over the past 10 years or so McGregor Range has expanded north and south along the east basin, probably too close to 62/180 to be safe because the expansion consists of multiple firing ranges for tanks and various calibers of firearms and rifles. Take a look at Google Maps in the east valley near the county line. That large semicircle there is the south end of the range. Scroll up to the mountain cliffs and you will see many tank ranges with moving targets. North of that area, the areas of Oro Grande and Dog Canyon too have been consumed by rocket and patriot missile ranges for LAWs and other forms of short land to air target practice, not to mention the small cities setup to train on clearing buildings in the desert. There is just too much action out there nowadays to be close to the army reservations boarders.