The muzzleloading community is blessed with a number of people that spend their spare time trying to make things easier for folks interested in the sport. They organize shoots, write newsletters, create web pages, and also, keep track of all, or at least many of the activities in their area or state, even if they will not be able to enjoy them.
Rather than duplicate the effort of the selfless people who have taken the time to list shoots and other events, I will simply offer the web pages that I have found that list such stuff.
The United Nebraska Muzzleloaders Association has a list of all the events submitted to them here.
The Southeastern Iowa Sportman's Society, Inc. web pages have a number of blackpowder events, as well as archery meets, craft fairs and modern shoots listed here.
If you know of another place to see where shoots, rendevous', trade shows or the like can be found, please let me know by clicking here.