1921 Map of Dauphin Island

The coastal landscape is characterized by a series of barrier islands and precarious passages, including West Sand Island and Pelican Island. Navigational aids such as the Sand Island Light and various markers like the Bell and Whistle. highlight the era's reliance on physical signals for vessels transiting the Sand Id. Channel into the safety of Pelican Bay. This map captures the strategic importance of these coastal defenses and the intricate hydrography of the Alabama shoreline before modern channel dredging and island migration significantly altered the seascape.