My wife and i where traveling north on hwy 550 in colorado south of ouray. my wife noticed a white object that looked like a two rotor drone. they where flying like they where performing aerial acrobatics. the things that did not seem right where that they flew for way to long for normal battery life. they followed us up the highway for over 20 minutes. if someone was controlling these objects what was his location to fly these things for such a long period of time.