International Dark Sky City

On October 24th, 2001, the City of Flagstaff became the World’s First
“International Dark Sky City.”

The designation was awarded by the International Dark-Sky Association (IDA), a tax-exempt non-profit organization dedicated to preserving and protecting the nighttime environment and the heritage of dark skies. The International Dark-Sky City designation is given to identify towns and cities “with exceptional commitment to and success in implementing the ideals of dark sky preservation and/or restoration, and their promotion through quality outdoor lighting.”

2012 FDSC Chris picFor the criteria used by the IDA for recognizing International Dark-Sky Cities, click here. For more information on other Dark-Sky Place designations and locations, click here.

IMG_5836 - 2Stargazers defend darkness in Arizona by Peter Friederici, High Country News December, 2001

flagstaffsky_usno FDSC sports lighting - 1 nightvisions1 - 1


To celebrate, promote, and protect the glorious dark skies of Flagstaff and northern Arizona.