A night chart of Lake Superior, printed 18 × 36 inches. 103 lighthouses (89 still lit, 14 dark) glow in their lamps’ true colors, each sized by how far its light carries on a clear night, alongside 189 charted shipwrecks. Every light and wreck is numbered and listed in a full index, with a legend that explains how to read marine light codes. Part of the Lighthouses & Shipwrecks series from Ridgeline Maps.
A night chart of Lake Superior, printed 18 × 36 inches. 103 lighthouses (89 still lit, 14 dark) glow in their lamps’ true colors, each sized by how far its light carries on a clear night, alongside 189 charted shipwrecks. Every light and wreck is numbered and listed in a full index, with a legend that explains how to read marine light codes. Part of the Lighthouses & Shipwrecks series from Ridgeline Maps.
