Evening sighting of UFO at two different locations.

We were camping at a private camp ground when we heard a very strange sound and looked up to see what at first appeared to be a jet airplane passing by the campsite very slowly and at a very low altitude, as if it were landing. The sound was very foreign and did not sound like any aircraft either of us had ever heard. Then the craft became silent and seemed to disappear over some trees. We then went out to a nearby field to see if we could figure out what it could have been & where it went. We saw nothing for a long while. As we decided to go back to our campsite I noticed what appeared to be a falling star. I pointed out the location I saw the light drop when all of a sudden a craft slowly approached us. It was triangular in shape and huge as it came to a stop right in front of us, almost above us. We noticed that it made no sound whatsoever. My friend noted that is did not have any flashing red light that all registered aircraft are required to display. Right after he stated that a large red light began to glow at the bottom, center of the craft. As soon as that occured we freaked thinking that the occupants may have heard us and responded. We then witnessed the craft swiftly drifted away silently then sped upward at what appeared to be a 45% angle until it went out of sight.