NOAA S-57 chart cell
Saint Louis River - Duluth-Superior Harbor, WI-MN
US4WI1PA
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 127
- S-57 layers
- 19
- Published
- Mar 4, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.80000° N
- South
- 46.50000° N
- West
- 92.40000° W
- East
- 92.10000° W
- Center
- 46.65000° N, 92.25000° W
- Bounds area
- 223 sq nm
- Feature density
- 0.5702 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 6.7
- Smallest layer
- 1
- Largest layer
- 26
- Area sq km
- 764
- Features per sq km
- 0.16626
- COALNE Coastline 26
- LNDARE Land area 17
- RIVERS River 14
- SLCONS Shoreline construction 11
- BUAARE 10
- SEAARE Sea area 10
- LIGHTS Light 7
- LAKARE 6
- LNDMRK 5
- LNDRGN Land region 4
- CTNARE Caution area 3
- DEPARE Depth area 3
- M_QUAL Data quality 3
- FAIRWY Fairway 2
- MAGVAR Magnetic variation 2
- BRIDGE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
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/US4WI1PA.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4WI1PA/3.0/US4WI1PA.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WI1PA/3.0/US4WI1PA.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WI1PA/3.0/US4WI1PA.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WI1PA/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | Mar 4, 2026 | metadata.json |