
Dauphin Island stretches across the northern edge of this coastal survey, serving as a critical barrier between the Mississippi Sound and the open Gulf of Mexico. Based on 1958 topography with revisions compiled in 1981, the map highlights the early modern footprint of the Dauphin Island settlement. The arterial Bienville Blvd provides the primary transit corridor along the narrow island reach, where residential and commercial development is concentrated. This documentation by the U.S. Geological Survey and USC&GS captures the shoreline's vulnerability and the island's unique position as a low-lying coastal outpost. The vast majority of the sheet is dedicated to hydrography, showing bathymetric contours and soundings that define the seafloor as it drops away into the Gulf, providing essential data for maritime navigation and coastal history researchers studying the Mobile County coastline.
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2 editions found
1921 · Grand Bay
USGS Topo · 1:62,500
1921 · Petit Bois Island
USGS Topo · 1:62,500
1921 · Dauphin Island
USGS Topo · 1:62,500
1921 · Delchamps
USGS Topo · 1:62,500
1941 · Cedar Point
USGS Topo · 1:62,500
1942 · Petit Bois Island
USGS Topo · 1:62,500
1942 · Fort Morgan
USGS Topo · 1:62,500
1943 · Cedar Point
USGS Topo · 1:62,500
1943 · Grand Bay
USGS Topo · 1:62,500
1953 · Mobile
USGS Topo · 1:250,000