This may come as a surprise to you, but 
If you visit the valley, you won't need an expert to tell you that. You can just ask the locals.
"You should hear the stories they've got," said Judy Messoline. "Nobody pays much attention to it because it happens so much!"
About a decade ago, Messoline decided to build a center where people could go to discuss their sightings and experiences.
"I started this in 2000, mainly because of all the stories from the locals," Messoline said. "Since we opened, we've had 57 sightings from just here. I've seen 26 of them".
Messoline figures more than 15,000 people have visited the watch tower in the past ten years.
She says most of them are believers.
For the best and most detailed account of the numerous UFO sightings in the San Luis Valley, be sure to read Christopher O'Brien's excellent book, Mysterious Valley. To read the rest of the article, click here.