The Elephant Tusk trailhead campsite is pretty exposed, but the view is great. Glenn Spring, near the east end of the Black Gap Road, has a fascinating history. The spring is beautiful. All the dirt roads are remote and seldom patrolled. Take at least two gallons of water, always, besides the minimum gallon per day of planned travel.
Dehydration really hurts.
If you travel alone, you have to figure you are responsible for yourself, mostly 'cause there ain't no one else around. So be prepared. And of course, speaking of cool and pavement, the run up to the Chisos Basin is mighty fine. Oh yeah, gas at Panther Junction and Study Butte, and supper's best at La Kiva, if Pam's still cookin' there on Wednesday nights. This place is in the middle of nowhere, and was nowhere near full the night I stayed.