Me and my friend were waiting for my brother to come load our trailers and noticed a light quickly move aacross the sky over towards another color changing light in the distance. We were about an hour north of grande prairie and the light was a few miles away to the west. It ascended and decended while changing directions back and forth like nothing we'dever seen. We watched it for about an hour and a half until we started loading then seen it again as we were leaving before it disappear eventually into the distance.