Triangle Craft W/ 3 lights, one in each corner, tracing southwestern shore of Lake Superior near Silver City, MI.Triangle craft with a large white light in each corner running along the shore of Lake Superior between Silver City and Ontonagon, MI, closer to Silver City than Ontonagon. My friend and I were driving the highway along the shore and observed the craft making no noise and hovering along a path similar to the shore line almost as though it were following it. We stopped and watched it until it faded from view running Northeast along the shore.