A culvert marker has a pole connected to the wire rope; a wire rope; and a base. A marker has a structural base; a wire rope extending out of the structural base; and a mast supported by the wire rope. A marker has a structural base; and a wire rope extending out of the structural base, with a central axis defined by the wire rope projecting through an area defined between plural ground-or-support-surface contacting points that are defined by the structural base and are spaced angularly about the central axis. Related methods and combinations are also discussed.