Wild game vendors?
You can try someone like Hobe Meat - 6044 North 16th Street, Phoenix, AZ 85016-1802 (602) 604-2333. I don't think they have a website. You'll probably have to call...
I know you can order it online from people like Nicky USA. They're based out of Portland.
6044 N 16th St, Phoenix, AZ 85016