I'm a big fan of Ommegang's Hennepin. Not that it really matters, but I could swear I have seen it labeled "Product of Belgium" before, but not always. I know that Ommegang is in Cooperstown, and I assume it is brewed there.
Is it possible they brew it at two locations? Any insider info? Either way, its a great beer, and I can't wait to try for a clone.