Sure, an inexplicable small-town mystery is fun.

But for John Grossnickle, sheriff of Sweetwater County, Wyoming, this one’s getting a little stale. For over a year, Sweetwater officials have been trying to get to the bottom of a series of unexplained appearances by unidentified flying objects.

Alarmingly, the UFOs seem to have a peculiar interest in a local power facility, the Jim Bridger Steam Plant, which houses four coal-fired generators.

“We’ve worked with everybody,” the sheriff’s spokesperson, Jason Mower told the Cowboy State Daily. “We’ve done everything we can to figure out what they are, and nobody wants to give us any answers.”

Of course.

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