NOAA S-57 chart cell
Wye River, Wye East River, Miles River, and Choptank River
US4MD1DE
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 5,618
- S-57 layers
- 47
- Published
- Jun 10, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 39.00000° N
- South
- 38.70000° N
- West
- 76.20000° W
- East
- 75.90000° W
- Center
- 38.85000° N, 76.05000° W
- Bounds area
- 253 sq nm
- Feature density
- 22.2346 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 119.5
- Smallest layer
- 1
- Largest layer
- 1,770
- Area sq km
- 867
- Features per sq km
- 6.48258
- COALNE Coastline 1,770
- SLCONS Shoreline construction 1,189
- LNDRGN Land region 752
- DEPCNT Depth contour 529
- DEPARE Depth area 528
- PILPNT 149
- RIVERS River 115
- SBDARE Seabed area 89
- SEAARE Sea area 73
- OBSTRN Obstruction 69
- DAYMAR 42
- LNDARE Land area 42
- BCNLAT Lateral beacon 37
- BUAARE 22
- BRIDGE 20
- SOUNDG Sounding 20
- LAKARE 19
- M_QUAL Data quality 18
- BOYLAT Lateral buoy 16
- CBLOHD 15
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/US4MD1DE.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MD1DE/1.1/US4MD1DE.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MD1DE/1.1/US4MD1DE.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MD1DE/1.1/US4MD1DE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MD1DE/1.1/US4MD1DE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MD1DE/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Jun 10, 2026 | metadata.json |