US Naval Observatory
10391 W Naval Observatory Rd, Flagstaff, AZ 86001
US Naval Observatory is a dark sky stay near Flagstaff, set up for nights under some of the country's darkest skies. It's in a recognized dark-sky area. Skies here sit around Bortle class 4. Spend the evening watching the Milky Way rise, then settle into a comfortable base for the next day's exploring. Telescope access, exact accommodations, and rates are confirmed directly with the host — check availability before you plan your trip around a new moon.