I'm in Vegas. So last week there was a wildfire on one of the neighboring mountains. I went outside to check out the smoke and was looking West at the mountains. (For those that don't know, Vegas is basically a valley surrounded by mountains, with the highest being on the Western side.) There is a ridge that runs about the length of the city from North to South
As I'm watching, I see what I first thought were helicopters that I assumed were also checking out the fire behind this ridge. The ridge is about four miles from my house where I was observing. As I'm watching what I thought were helicopters, one of them seems to hover right below the ridge. As it stops moving, it also becomes really bright. Then, a second one flies up and hovers right next to it. Same thing, it goes from dull black to bright white. Finally, a third one flies slowly down and turns bright.
At this point I know there is no way there are helicopters because they are way too close and too bright to be just the reflection of the Sun. They are lined up perfectly in a row and not moving at all. If I didn't see them fly down, I would just assume it was the reflection of something on the ridge. I had my wife come out to see it too, so it wasn't just me. I also have photos and video, but it just looks like bright lights since they aren't moving.
It's such a conspicuous place that it seemed like whatever it was, it either wanted to be seen or didn't care about being seen.
Weird stuff.