Correct, the lake at the burn is in a different MU.
I don't know about a natural spring near the camp. We used the water from the river for cooking and washing. We brought our own water for drinking and topped up our jugs each time we had to make our too many trips into town lol.
We covered a lot of ground in the MU. I am not sure where my dad and our friend spent most of their time when Marc and I weren't with them. We spent quite a bit of time going after the Monster and I wanted to spend more time in a few areas and figuring them out instead of seeing the whole MU and learning nothing in detail, all while burning a ton of fuel. Too much driving now makes me crazy and I absolutely despise it because I did it with people when I was younger whom I thought knew what they were doing and really didn't. I am whole-heartedly against just winging it and blindly driving all over hoping that something will jump out in front of us. I know it happens, as it did on this trip and it also happened with my second bear, but I really do despise doing more than is required.
My dad thought it was hilarious that I was dead set against too much driving because we don't have the animal density anymore, in my opinion, like they did 40 years ago to make just driving roads for animals worth it, and then we killed a huge bull ON THE ROAD! But, it is what it is. I'm not complaining lol. It just goes to show that you never know what will happen when hunting.