Vermilion Bay

Vermilion Bay (HM27FP)

Location: Franklin, LA 70538
Country: United States of America

N 29° 44.047', W 91° 51.299'

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Cypremort Point State Park

—Atchafalaya Water Heritage Trail —

Between Grand Isle and Cameron, Cypremort Point is the only locality near the Gulf of Mexico that can be reached by car.Cypremort is derived from the French words cyprés (cypress) and mort (dead). This point of land at Vermilion Bay may have been created by an old distributary of the Mississippi River during the building of the Maringouin Delta (between 5,000 and 7,500 years ago). The Chitimacha Tribe inhabited this area before European contact, and tribal tradition states that one of their boundary markers—an especially large or great cypress—grew at this site. The Chitimacha had some permanent villages inland, but members also traveled to the coast—especially in the winter—to fish and harvest oysters. During the summer, they typically moved inland, away from the possibility of high water during hurricanes and tropical storms.

To the northwest is Weeks Island, one of five major salt domes located along the Louisiana coastline in the Gulf Coast Salt Dome Basin. Salt rose here from thousands of feet below the surface, creating domes that act as island habitats for birds and other animals. Significant hills are unusual in south Louisiana, so this view is particularly striking.

At the end of LA Hwy. 319 are the open waters of Vermilion Bay and, beyond that, the Gulf

of Mexico. This area is especially vulnerable to inundation storm surge from hurricanes and tropical storms between May 1st and November 30th each year. Marsh Island, a barrier island that provides some protection from storm surge, is located in the distance. Its low-lying coastal marshes are home to waterfowl and crustaceans, and a colony of snow geese winters at the Marsh Island Wildlife Refuge. The island's shores also harbor a series of relict oyster reefs—remnants of the few that were not mined during the 20th century. Today oyster reefs along Louisiana's coast are protected, and efforts to restore them are helping to rebuild some of this critical ecosystem that defends shorelines and provides habitats for many species of fish and crustaceans.

Between Grand Isle and Cameron, Cypremort Point is the only locality near the Gulf that can be reached by car. A half-mile stretch of a man-made beach provides a fun area for picnics. Visitors can also enjoy the water via activities ranging from fishing and crabbing to water skiing and sailing.Visit for more information about this site.

This site's geology/geomorphology: Holocene deltaic deposits of Teche course of Mississippi River.
HM NumberHM27FP
Series This marker is part of the series
Placed ByState of Louisiana and National Park Service
Marker ConditionNo reports yet
Date Added Tuesday, May 8th, 2018 at 7:01am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)15R E 610731 N 3289872
Decimal Degrees29.73411667, -91.85498333
Degrees and Decimal MinutesN 29° 44.047', W 91° 51.299'
Degrees, Minutes and Seconds29° 44' 2.8199999999998" N, 91° 51' 17.94" W
Driving DirectionsGoogle Maps
Area Code(s)337, 985
Closest Postal AddressAt or near Beach Ln, Franklin LA 70538, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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