Free: Contests & Raffles.
I'm pretty sure Sleeping Indian Designs is made in America. They're out of Wyoming. http://www.woolcamo.com/Their stuff is expensive, but everything I've heard about is once you buy it, you won't ever have to buy it again.
Pendleton Woolen Mills still makes there stuff locally.
Is that King of the Mountain stuff made in the USA? Of course, you'll have to sell your wife and children to buy it. I'm pretty sure that's not legal in this state...but you might want to check because I hear that the gear is pretty nice.