I've been in here before (it was restored as a visitor centre in 2005), but usually, I just walk through quickly because I'm in the middle of a bike ride when passing through. Today I'll take my time.
As for bighorn sheep, depicted in this first-floor exhibit, they aren't often seen. I was thrilled during my 2006 Mojave National Preserve trip to see a few, albeit from quite a distance, on a hillside near Marl Spring.