Alternative Photography International Symposium
It will be held July 7-9 in Santa Fe, NM. Bostick and Sullivan is the contact point for information, but they currently dont have information on their website.
It has recently been held in England and the US every other year. This year, it's the US's turn.
It is also at the same time as the Photo Arts Santa Fe, so there are all kinds of gallery shows, and other events going on, including a trade show, and many special happenings.
I'm going to try to be there this year if I can swing the schedule.