Enigma users have submitted 449 sightings in Colorado. Combined with publicly available sources, we have 5954 total sightings in Colorado. Cities with the most sightings in this region (within a 5,000 meter radius from the city center) are Colorado Springs (494), Littleton (232), Fort Collins (210), Boulder (182), and Pueblo (172). To search by city or country, download the iOS app and open the map.