The OP might consider canoe or kayak trekking as an alternative to hiking by foot. You can carry a lot more supplies, including a shotgun via a canoe or kayak. A good friend of mine did this up in the boundary waters of Northern Minnesota and said it was the trip of a lifetime. He and his sons camped along the waterways, using two canoes. They did a lot of fishing and sightseeing. In a typical canoe you can carry 3 to 4 hundred pounds of supplies.
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