Got called to do a removal in a tree yesterday. The tree was located in a burned over section of a pine forest in an old hollow oak on the side of a mountain about 8500' feet up. Very interesting, had to use a bulldozer and a backhoe to section off the hive, which was about 20 feet up - all on a steep incline. It went pretty well and we got the hive out in one piece.
Going to leave them in the tree to overwinter. I will deal with them in the Spring. These bees are very dark and quite aggressive. I am thinking they are some kind of AMM 'ish bee.