I recently got back from an elk hunting trip with my dad in the Mt. Zirkel wilderness area. I wasn't doing any elk hunting, but did bring a sling shot and fishing pole that both broke down to pack. Mostly I would just day hike around to small lakes next to our main camp and do some fishing. I went on two separate overnight hikes along the Continental Divide Trail and made a loop back to our camp. I ended up not using the sling shot at all, but could have on several occasions. Basically, I wouldn't rely on hunting or fishing as a primary food source to save weight. I would only do it for the "adventure" of living off the land.
Fishing was great and it's really nice having fresh trout to eat for lunch and dinner. A few thoughts: The case to protect my pole was bulky and all my fishing gear weighed over a pound. I knew that there would be fish where I was fishing. I wouldn't rely on fishing unless you had fished where you are going before and even then always keep enough food to get you through just in case.

