This tag is used where the supporting structure is not specified, otherwise the seamark:type tag should take the value of the supporting structure (most often "landmark")Ī minor light is a short-range light that marks obstacles in the same way as lighted buoys and beacons, otherwise the seamark:type tag should take the value of the supporting structure (most often "pile")Ī distinctively marked vessel anchored or moored at a charted point, to serve as an aid to navigation. This page defines values for the "seamark:type" tag for lights objects and their attribute tags.Ī light is a luminous or lighted aid to navigation.Ī major light is a light that is intended to be seen at extended distances and will indicate the presence of prominent land masses or provide guidance into harbours or rivers. The tags defined on this page will render in various nautical charts.