NOAA S-57 chart cell
Lake Superior - Knife River to Encampment Island, MN
US4MN1CD
- Usage band
- Approach · code 4
- Current edition
- 3.2
- Features
- 129
- S-57 layers
- 30
- Published
- Apr 8, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 47.10000° N
- South
- 46.80000° N
- West
- 91.80000° W
- East
- 91.50000° W
- Center
- 46.95000° N, 91.65000° W
- Bounds area
- 221 sq nm
- Feature density
- 0.5825 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 4.3
- Smallest layer
- 1
- Largest layer
- 17
- Area sq km
- 760
- Features per sq km
- 0.16982
- SBDARE Seabed area 17
- DEPARE Depth area 12
- SLCONS Shoreline construction 12
- DEPCNT Depth contour 11
- LIGHTS Light 10
- RECTRC 8
- RIVERS River 6
- COALNE Coastline 5
- UWTROC Underwater rock 5
- LNDARE Land area 4
- SEAARE Sea area 4
- BCNLAT Lateral beacon 3
- BUISGL 3
- LNDELV 3
- LNDRGN Land region 3
- SOUNDG Sounding 3
- BOYSPP Special purpose buoy 2
- BUAARE 2
- DAYMAR 2
- LNDMRK 2
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/US4MN1CD.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MN1CD/3.2/US4MN1CD.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MN1CD/3.2/US4MN1CD.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4MN1CD/3.2/US4MN1CD.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MN1CD/3.2/US4MN1CD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MN1CD/3.2/US4MN1CD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MN1CD/3.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.2 | Apr 8, 2026 | metadata.json |