NOAA S-57 chart cell
Port Royal Sound to Altamaha Sound - North Atlantic Ocean
US3GA1AC
- Usage band
- Coastal · code 3
- Current edition
- 1.0
- Features
- 554
- S-57 layers
- 48
- Published
- Jan 14, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 32.40000° N
- South
- 31.20000° N
- West
- 81.60000° W
- East
- 80.40000° W
- Center
- 31.80000° N, 81.00000° W
- Bounds area
- 4,412 sq nm
- Feature density
- 0.1256 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 11.5
- Smallest layer
- 1
- Largest layer
- 97
- Area sq km
- 15,132
- Features per sq km
- 0.03661
- COALNE Coastline 97
- LNDARE Land area 84
- RIVERS River 73
- OBSTRN Obstruction 39
- SBDARE Seabed area 36
- SEAARE Sea area 35
- LNDRGN Land region 22
- DEPARE Depth area 18
- DEPCNT Depth contour 16
- SLCONS Shoreline construction 16
- M_QUAL Data quality 14
- SOUNDG Sounding 13
- WRECKS Wreck 10
- LIGHTS Light 9
- RESARE 9
- BOYSPP Special purpose buoy 7
- BOYSAW 5
- TOPMAR 5
- BUAARE 4
- CTNARE Caution area 4
Nearby Chart Cells
Coastal usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US3GA1AC.zip
- S-57 cell https://charts.openships.ai/noaa/s57/coastal/US3GA1AC/1.0/US3GA1AC.000
- GeoJSON https://charts.openships.ai/noaa/s57/coastal/US3GA1AC/1.0/US3GA1AC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/coastal/US3GA1AC/1.0/US3GA1AC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/coastal/US3GA1AC/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jan 14, 2026 | metadata.json |