NOAA S-57 chart cell
Lake Michigan - Jacksonport to Portage Point, WI
US4WI1JR
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 262
- S-57 layers
- 30
- Published
- Aug 15, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 45.00000° N
- South
- 44.70000° N
- West
- 87.30000° W
- East
- 87.00000° W
- Center
- 44.85000° N, 87.15000° W
- Bounds area
- 230 sq nm
- Feature density
- 1.1391 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8.7
- Smallest layer
- 1
- Largest layer
- 49
- Area sq km
- 789
- Features per sq km
- 0.3321
- OBSTRN Obstruction 49
- DEPCNT Depth contour 46
- DEPARE Depth area 45
- FSHFAC 40
- PILPNT 11
- SBDARE Seabed area 8
- BUISGL 6
- RECTRC 5
- RIVERS River 5
- BOYLAT Lateral buoy 4
- BUAARE 4
- CTRPNT 4
- UWTROC Underwater rock 4
- COALNE Coastline 3
- LIGHTS Light 3
- LNDRGN Land region 3
- SEAARE Sea area 3
- SOUNDG Sounding 3
- LAKARE 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/US4WI1JR.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4WI1JR/2.0/US4WI1JR.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WI1JR/2.0/US4WI1JR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WI1JR/2.0/US4WI1JR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WI1JR/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Aug 15, 2025 | metadata.json |