Congratulations to Flagstaff, AZ! These images captured by the National Parks Service illustrate the success of Flagstaff’s Lighting Ordinances.
“The nighttime observations captured and compared Flagstaff’s light pollution to that of Cheyenne, Wyo. And though the cities are similar in size, measurements found that Flagstaff’s nighttime light emissions are nearly 14 times fainter than Cheyenne’s.“
Colorado Plateau Dark Sky Cooperative 