The Western Can Am Spyder Rally this year is again in St.George,Ut. This is the largest Spyder rally in the West with great rides and a good vendor show. Registration is now going on.
www.redrockspyderrally.com.

I went last year and it was a fun rally,well organized and lots to do. It is open to any trike or any other motorcycle,but of course the vendors will be geared more towards Spyders. There were over 400 Spyders there last year and they should have at least that many or more this year.