I think they call those animals piebald. They aren't true albinos because they have some color and dark eyes. They are rare and really unique animals.
Game farms have figured how to breed selectivly for piebald and albino animals and are doing that to sell those "trophy" animals to people...another topic all together.
Nice pictures! Hopefully he hangs around for a while.
Out here in Colorado, and in the units that I haunt, it is a tricky game to figure out how far to pack in on a rifle hunt. You want to get away from the masses that have moved game away from the roads but might want to stay close enough that you are taking advantage of the animals forced movements. There is no universal distance but I like the 1.5 to 4 mile range for day hunts where I am not planning on bivying out. This keeps you in that productive buffer zone where the animals are really...