For being in the desert Arizona has a thriving reef and aquarium scene. The main club I have interacted with over the years is AZ FRAG or Arizona Fish & Reef Aquarium Group. A great name for a great group of people. There are meetings, frag swaps, auctions, and a library of books.
You can visit Arizona’s reef club online.
Arizona Fish & Reef Aquarium Group | REEF2REEF Saltwater and Reef Aquarium Forum
NOTE: The group used to meet on Reef Central but no longer does. Because of Reef Central rules I cannot share the link to the new forum there. I hope enough people can find this article so they can meet up at FRAG.