For that matter, WildTexas.com could happily host it, complete with a dedicated discussion forum area (password-protected for camping club members, or open to the public like the rest of our forums -- whatever the club members wanted)
and a dedicated camping club Photo Gallery. You could even use our Wild Texas Calendar to list club events! If people wanted it more separate, we could provide a subdomain so the camping club was accessible via something like
http://campingclub.wildtexas.com (Note: this is just a sample; that link goes nowhere @ present.)
I don't camp much these days, but I hope to get back into it and I certainly would love to help others organize and get a camping club going using some of the many resources we already have available to us here on WildTexas.com.
Feel free to send a private message to me if anyone's interested, or keep adding on to this thread. With the number of active camping enthusiasts we have here, the wealth of features and longevity of WildTexas.com (1995 and onward), surely together we can all get this thing going.