Cat Island anchors this coastal survey, showcasing a complex T-shaped barrier island formation within the Gulf Islands National Seashore. The landscape is defined by dynamic coastal features, including the prominent Great Sand Hill at North Point and an extensive network of sand extensions such as Middle Spit, South Spit, and Phoenix Spit. This 2020 map records the intricate interface of land and water where the Mississippi Sound meets Chandeleur Sound, tracing the maritime boundary between Mississippi and Louisiana and the parish line of Harrison County and St. Bernard Parish.
24 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1893 · Cat Island
USGS Topo · 1:62,500
1946 · Isle Au Pitre
USGS Topo · 1:31,680
1949 · Door Point
USGS Topo · 1:31,680
1950 · Ship Island
USGS Topo · 1:24,000
1951 · Cat Island
USGS Topo · 1:24,000
1953 · Mobile
USGS Topo · 1:250,000
1954 · Isle Au Pitre
USGS Topo · 1:31,680
1954 · Gulfport South
USGS Topo · 1:24,000
1954 · Biloxi
USGS Topo · 1:62,500
1955 · Pass Christian
USGS Topo · 1:24,000