Folks here in the MidAtlantic consider Dixon's a shrine to Muzzle loading and make frequent pilgrimages there. Every year the end of July they have a show and competition of those who make long rifles, as well as educational seminars on engraving, relief carving etc. I remember when Dixon ran his shop out of an old dairy barn a few miles west 35 years ago. Been to Dixon's at least a hundred of times but maybe I'll get to the Fair this year. A few years ago, PCN broadcast some of the seminars on their cable channel. You might still be able to access them somewhere on the web.
http://www.dixonmuzzleloading.com/#
Other vendors come from all over the eastern US to sell guns and show their wares.
Would like to go sometime. Wish I was a little closer.
Gonna shoot for 2017 after I graduate school.... (maybe)