From Redditor /u/Brancher:
In September this year, I was hunting antelope out near the Red Desert in Wyoming. I had just shot my antelope and was walking about 150 yards out to where he dropped so I could tag and begin field dressing the animal. I should mention I'm about 40 miles from the main road, and I had not seen another human or vehicle since I got off the main road. This area is so extremely remote it's hard to even describe.
So as I'm walking out to the antelope, I look up, and about one to two miles off in the distance, I see this extremely bright light zooming over the landscape and headed my way. I thought it was probably a game warden on a side-by-side coming to check my paperwork and all. No big deal. I keep walking out and find the animal, then look up. This light dives down into the sage brush, and I can no longer see it.
It was about half a mile from me when it disappeared. I also notice I don't hear any engine, if it is in fact someone on a motorized vehicle. I'm mostly confused at this point, not sure what the hell this light is or where it went, but I continue on and tag the antelope.
It takes me all of 10-15 seconds to put the tag on, then I look up and see the light traveling away from me now - and it's about three to five miles away from me and going at least 100 miles per hour. It was really zooming way faster than any vehicle could travel over that type of terrain. Also, there are no roads or anything where the light is traveling, so I don't know how it was going so fast. I was pretty spooked at this point.
I field dressed the animal as fast as I could and dragged it back to my truck. I just had a very uneasy feeling at this point. I have no idea what that light was, although others have speculated it was a drone. But if it was a drone operated by the game warden, why didn't he come check me out once I got back to my truck?