NOAA S-57 chart cell
Maine
US4ME1AB
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 417
- S-57 layers
- 38
- Published
- Apr 30, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 43.50000° N
- South
- 43.20000° N
- West
- 70.80000° W
- East
- 70.50000° W
- Center
- 43.35000° N, 70.65000° W
- Bounds area
- 236 sq nm
- Feature density
- 1.7675 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 11
- Smallest layer
- 1
- Largest layer
- 76
- Area sq km
- 809
- Features per sq km
- 0.51533
- RIVERS River 76
- DEPARE Depth area 53
- DEPCNT Depth contour 52
- UWTROC Underwater rock 37
- COALNE Coastline 35
- SBDARE Seabed area 33
- SLCONS Shoreline construction 25
- LNDRGN Land region 24
- BRIDGE 8
- SEAARE Sea area 8
- SOUNDG Sounding 6
- BUAARE 5
- LNDELV 5
- M_QUAL Data quality 5
- LIGHTS Light 4
- BOYLAT Lateral buoy 3
- LAKARE 3
- LNDARE Land area 3
- LNDMRK 3
- PONTON 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/US4ME1AB.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4ME1AB/1.1/US4ME1AB.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4ME1AB/1.1/US4ME1AB.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4ME1AB/1.1/US4ME1AB.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4ME1AB/1.1/US4ME1AB.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4ME1AB/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Apr 30, 2026 | metadata.json |