The canonical "constitutional carry" states are Vermont, Alaska, and Arizona and each does restrict to some degree where you can carry. For example, in Alaska you may not carry in a school or a court building or in the areas where carry is prohibited by federal law (post offices, federal buildings, military bases, etc.). Additionally, in Alaska it is illegal to carry a firearm in a private home without the permission of an adult who lives there. You probably could be cited for trespassing if the owner of a property tells you that you may not carry but you refuse to go. That's about it in Alaska. I may have missed one or two, but the restrictions are few.
