We were driving late morning to look at some land for purchase north of artesia, nm., close to hangerman. my wife saw 3 dark triangle objects flying in formation across sky to the northeast. later that day we were driving towards guadalupe mountains to hike in the early afternoon. thats when she saw them again floating in the sky not moving. then they started moving north slowly. i never saw the triangle objects, but later that afternoon we were driving on a un-named dirt road heading to a hiking trail called slaughter cave. we never made it as we stopped to observe the metallic floating object(s), not sure if there were more than one as it would disappear and reappear at a different location. it was floating above a ridge probably only 70'-100' above the ground. it appeared to be searching for something. it stayed right above the ridge for about 20 - 30 minutes. disappearing and reappearing. moving slowly across the ridge. it was disc shaped (30'-50'), no noise or any disturbance around it. multiple times it would turn vertical and disappear. last i saw it turned vertical slowly ascending up then disappeared. we have not see anything like it since.