ADMIRALTY List of Lights & Fog Signals provides coverage of over 85, 000 light structures including lighthouses, lightships, lit floating marks, fog signals & other lights of navigational significance. Each volume of List of Lights & Fog Signals offers: Descriptions of the characteristics of lights & fog signals, together with the equivalent foreign language light descriptions, to help bridge crews with identification Tables to assist in the calculation of geographical & luminous ranges of lights Details for all lights listed including the international number, location and/or name, geographical position, characteristics & intensity, elevation in metres, range in sea miles & description of structure Published in 14 regional volumes (A-P) for simplicity & ease of handling