We had a guest at the ranch today. While talking, we heard something coming closer and closer. Suddenly we looked up and there was a military chopper up the hill from us, just a few feet above the ground. The cargo door was open, as was the pilot door, with a gun mounted on the front. We could see people inside the chopper. The chopper came down the canyon, lower than our house, seeming to barely skim the top of the grass! Then it turned and flew east. We've never seen a chopper fly that low on the ranch before.