NOAA S-57 chart cell
Maine
US4ME1BC
- Usage band
- Approach · code 4
- Current edition
- 1.5
- Features
- 1,049
- S-57 layers
- 42
- Published
- Oct 22, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 43.80000° N
- South
- 43.50000° N
- West
- 70.50000° W
- East
- 70.20000° W
- Center
- 43.65000° N, 70.35000° W
- Bounds area
- 235 sq nm
- Feature density
- 4.4685 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 25
- Smallest layer
- 1
- Largest layer
- 205
- Area sq km
- 805
- Features per sq km
- 1.30281
- COALNE Coastline 205
- SLCONS Shoreline construction 136
- DEPARE Depth area 106
- DEPCNT Depth contour 104
- SBDARE Seabed area 72
- RIVERS River 63
- UWTROC Underwater rock 61
- LNDRGN Land region 49
- LNDARE Land area 32
- PONTON 24
- BRIDGE 23
- SEAARE Sea area 22
- LIGHTS Light 19
- BOYLAT Lateral buoy 14
- M_QUAL Data quality 14
- SOUNDG Sounding 13
- LNDELV 11
- LNDMRK 11
- BUAARE 10
- LAKARE 9
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/US4ME1BC.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4ME1BC/1.5/US4ME1BC.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4ME1BC/1.5/US4ME1BC.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4ME1BC/1.5/US4ME1BC.002
- S-57 update 003 https://charts.openships.ai/noaa/s57/approach/US4ME1BC/1.5/US4ME1BC.003
- S-57 update 004 https://charts.openships.ai/noaa/s57/approach/US4ME1BC/1.5/US4ME1BC.004
- S-57 update 005 https://charts.openships.ai/noaa/s57/approach/US4ME1BC/1.5/US4ME1BC.005
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4ME1BC/1.5/US4ME1BC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4ME1BC/1.5/US4ME1BC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4ME1BC/1.5/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.5 | Oct 22, 2025 | metadata.json |