Here is an interesting Blog

Steve's RV Travelogue: Carlsbad Caverns
This is a blog by another RVer.  There are some great pictures here from inside Carlsbad Caverns.  In a later post he has a fairly impressive shot of a storm front moving across the desert in Arizona.  I think I'm going to go back and read some more of his older posts.  Seems like the sort of person we'd like to get to know.