Steamboat Springs.

"Observing Condition: This observation was made during the Perseid meteor shower. Many meteors were captured in the images! There was some haze near the horizon; stars were visible only above 10 degrees in elevation. The Beaver Creek fire was going on but it did not cause an obvious observable effect at the time of the observation. In between the two datasets, the average wind speed and the relative humidity were measured to be 7 mph and 40%, both were higher compared to the condition at the beginning of the observation. During the acquisition of the second data set, a bright light from a car shined directly into the camera, causing a bright and wide saturated column in the 7th image in b filter. Naked-eye Sky: Light pollution from the nearby cities was apparent from the azimuthal angle of 75 degrees and 110 degrees (east). The light from the towns were directly visible. The view due east (90 degrees) was blocked by the nearby rock formation. Although faint, the light dome extends all the way to the zenith. The Milky Way with the dark lanes was visible from 10 degrees in elevation in the west to 45 degrees in elevation in the east; the rest is lost in the haze (west) or in the light dome (east). The darkest part of the sky is due west of the zenith at roughly 70 degrees in elevation. The zenith sky brightness is 21.62 mag."

"Sky quality measurements were recorded at Rainbow Curve in Rocky Mountain NP on 9/4/2008. The site demonstrated a scientific darkness reading of 21.56 SQM."