Back in March of 1994 while having a small camp fire on a bluff that was overlooking the St. Croix river from the Wisconsin side. We were standing up looking down the River Valley when we saw an object coming up the valley flying as close to the east side as possible when it got up to us it was not even 100ft away, had lights that mimic our aviation lights. And it didn't make a sound while flying. After it got about a quarter mile away the thing took off and within around 15-20 seconds you could hear the roar of the Five jets that were coming from the East and must have been chasing it. That Baby was awesome the way it silently glided like it was weightless. I know what I saw and so do the others that were there on that night. We can only dream about having there type of propulsion and flight technology.