Alamosa.

"Site in Southwest corner of park, on road to Nature Conservancy Medano ranch, on west side of graded road about 0.5 mile north of highway. Sand everywhere, not good for public or telescopes, parking lot of VC or campground would be much better. Site chosen to reduce horizon blocking from Sangre de Cristo Mts. to east and north. Hazy in evening, clearing as night progresses. Clouds over mountains gradually diminshing, 15% on first set, less than 5% on last, reflecting lights of Denver and Colorado Springs, light dome calculations inaccurate. Lights of Alamosa and a string of "farm lights" along the highway north of Alamosa affect night vision, direct glare. Aside from glare from farm lights, sky quite dark, gegenschein visible, however bright and varying airglow, and glow to northeast from Denver and Colorado Springs extends only to about 15 degrees."

"Transparency excellent, seeing good, in early evening sky looks very dark except light domes of Alamosa, Denver, Colorado Springs, and a broad glow toward the west that seems to parallel the highway 160/285 (headlights). Later, especially by 4th data set, sky in the east brightens considerably, north slightly, distant cities seem brighter behind the mountains. Gegenschien seen with a little difficulty, no zodiacal band, Milky Way in Sagittarius washed out by Alamosa, very nice in Cygnus. M33 easy averted vision but not seen direct. Light domes not bright but extend upward to 15 degrees (Alamosa and the band of light to the west), glare from farm lights the most obtrusive, interferes with night vision. SQM 21.55 first set, 21.48 last set"