At dusk a glowing orange light was witnessed by my wife and i. it hovered, the lights changed color and it went from a stationary position to moving rapidly in a tight turn. it flew from above the castle rock in castle rock colorado, to just north of our position and then completely disappeared. as we were leaving the wendy's in town it reappeared as we headed east on wilcox st. the lights were so bright that it showed us the shape of the craft because it was so close. it was triangular and had more lights on it than any aircraft i have ever observed. it eventually flew east over the rock and i lost sight of it.