My wife and I was standing outside around 7 PM. tonight talking to a friend and there was some low clouds,almost like a light fog in the sky,and my wife was looking at the moon,she said hey what is those lights,we look up and there was three red lights in a triangle pattern blinking,but not blinking in sequence with each other,each was just blinking randomly,they was high in the sky but from our house we seen them just over the mountains to the west of us,we watched as they passed in front of the moon,but they was moving faster then an airplane and it never lost the triangle pattern,and in a few minutes it had passed behind the mountains and was out of our sight,my wife was going to try to record it on her phone but you couldn't see it on the phone, we were wondering if it was some kind of a drone,there has been one at the Yosemite park earlier last year, their was a story about it in our local news paper,but I've never seen anything like this before.