NOAA S-57 chart cell
Approaches to Gargathy and Wachapreague Inlets
US4VA1DH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 691
- S-57 layers
- 44
- Published
- Aug 26, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 37.80000° N
- South
- 37.50000° N
- West
- 75.60000° W
- East
- 75.30000° W
- Center
- 37.65000° N, 75.45000° W
- Bounds area
- 257 sq nm
- Feature density
- 2.69 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 15.7
- Smallest layer
- 1
- Largest layer
- 150
- Area sq km
- 881
- Features per sq km
- 0.78428
- DEPCNT Depth contour 150
- DEPARE Depth area 149
- SBDARE Seabed area 81
- COALNE Coastline 68
- LNDRGN Land region 41
- LNDARE Land area 35
- RIVERS River 29
- M_QUAL Data quality 24
- SEAARE Sea area 13
- CTNARE Caution area 12
- OBSTRN Obstruction 11
- WRECKS Wreck 8
- SOUNDG Sounding 7
- WATTUR 7
- BOYLAT Lateral buoy 6
- DRGARE 5
- LIGHTS Light 5
- PILPNT 4
- CBLARE 3
- DAYMAR 3
Nearby Chart Cells
Approach 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/US4VA1DH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4VA1DH/1.0/US4VA1DH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4VA1DH/1.0/US4VA1DH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4VA1DH/1.0/US4VA1DH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4VA1DH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 26, 2025 | metadata.json |