Bright light appears and follows same course nightly for past several monthsFor the past 3 months, roughly anytime between 2100 to 0300 we have seen a very bright light appear to the West/Southwest of our home, then travel on a course that takes it due Northeast, over the LC valley and continuing on until loss of sight at the horizon. There have been instances of multiple witnesses at our home. Last evening I was at the home while my wife was at work, across the valley, and we were tracking two of these..apparently one was following the course we always see it take, and the one she was tracking was apparently a few minutes ahead of it, same course.The object is brighter than any star or planet visible in the sky at the time of it's appearance, moves rather slowly (sometimes stopping), appears to witnesses to be roughly 200-300 feet above ground level (though this is a really rough estimate), has appeared alongside a full moon and was quite a bit brighter, if the elevation estimate is accurate the object is likely at most 100 feet in diameter, no solid object is seen (just the light).Oddly, we took a trip to Missoula over the past weekend, and tracked what appeared to be the SAME object. This time, we were travelling along I-90 heading East. Time was 2100 PST (2200 MST) roughly, object appeared to the South/Southwest as we passed Haugan, crossed over the road right as we passed McGee Creek area (referencing Google Maps), and we lost site of it over a ridge as we neared DeBorgia. A few miles down the road there are fire watch towers on some of the ridges and they have rotating strobes...the object was clearly brighter, and passed directly over the highway.