UFO Sighting in Concrete, Washington

Around 1:45 am, while camping at bayview campground up mt. baker, i noticed a craft of sort, moving quickly across the sky but in a left right motion to keep center balance. i then noticed a second one mins after the first one passed and then noticed the first one popping back up possibly appearing at the same time in the sky or it was a third one. no flashing lights, or extreme shape to light craft. more round.