NOAA S-57 chart cell
Lake Superior - Two Hearted River to Crisp Point, MI
US4MI2QR
- Usage band
- Approach · code 4
- Current edition
- 3.1
- Features
- 114
- S-57 layers
- 28
- Published
- May 21, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.80000° N
- South
- 46.50000° N
- West
- 85.50000° W
- East
- 85.20000° W
- Center
- 46.65000° N, 85.35000° W
- Bounds area
- 223 sq nm
- Feature density
- 0.5119 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 4.1
- Smallest layer
- 1
- Largest layer
- 27
- Area sq km
- 764
- Features per sq km
- 0.14924
- SLOTOP 27
- DEPARE Depth area 17
- DEPCNT Depth contour 16
- COALNE Coastline 10
- M_QUAL Data quality 10
- RECTRC 3
- RIVERS River 3
- SOUNDG Sounding 3
- LAKARE 2
- LIGHTS Light 2
- SBDARE Seabed area 2
- SEAARE Sea area 2
- WRECKS Wreck 2
- BCNLAT Lateral beacon 1
- BOYSPP Special purpose buoy 1
- CTNARE Caution area 1
- CTRPNT 1
- FAIRWY Fairway 1
- LNDARE Land area 1
- LNDMRK 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/US4MI2QR.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MI2QR/3.1/US4MI2QR.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MI2QR/3.1/US4MI2QR.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2QR/3.1/US4MI2QR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2QR/3.1/US4MI2QR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2QR/3.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.1 | May 21, 2026 | metadata.json |