Las Vegas Gyms

I need help so who better then the UG?!?! My brother is in L.A right now visiting friends and he's gonna drive to Vegas tomorrow, i believe. and he called and asked me what gyms he could go see to maybe see some fighters. I told him to try the blackhouse gym in California i know the Nog brothers are there quite a bit. Then in vegas i know wanderleis gym, the UFC gym, and xtreme couture?? is there anymore and does anyone know if there doing open workouts or anything so he could maybe at least see some fighters, any fighters. Thank you UG!!