NOAA S-57 chart cell
West Penobscot Bay
US4ME1DG
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 578
- S-57 layers
- 38
- Published
- Jan 15, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 44.40000° N
- South
- 44.10000° N
- West
- 69.30000° W
- East
- 69.00000° W
- Center
- 44.25000° N, 69.15000° W
- Bounds area
- 232 sq nm
- Feature density
- 2.4871 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 15.2
- Smallest layer
- 1
- Largest layer
- 111
- Area sq km
- 797
- Features per sq km
- 0.72513
- SLCONS Shoreline construction 111
- DEPARE Depth area 66
- DEPCNT Depth contour 66
- SBDARE Seabed area 56
- UWTROC Underwater rock 53
- COALNE Coastline 44
- LNDARE Land area 27
- LNDELV 26
- LNDRGN Land region 15
- BOYLAT Lateral buoy 12
- LNDMRK 12
- BUAARE 10
- LIGHTS Light 10
- RIVERS River 10
- SEAARE Sea area 10
- BCNSPP Special purpose beacon 6
- M_QUAL Data quality 6
- DAYMAR 5
- FOGSIG 5
- SOUNDG Sounding 4
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/US4ME1DG.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4ME1DG/1.1/US4ME1DG.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4ME1DG/1.1/US4ME1DG.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4ME1DG/1.1/US4ME1DG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4ME1DG/1.1/US4ME1DG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4ME1DG/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Jan 15, 2026 | metadata.json |