About the wilderness issue... we've begun to see increasing damage being done to the backcountry by ATVers and others who don't stay on the 4wd roads. Fly over the desert, and its really obvious what's happening. Encroachment from housing is also an issue.
This area - the Rock Corral and surrounding mountains - is still habitat for mountain lions, bobcats, ringtails, etc, and protects rarely seen archaeological sites.
The wilderness designation doesn't affect access to existing roads, but it hopefully will help deter people from blazing new trails. I want to see future generations enjoy the desert just the way we have.