NOAA S-57 chart cell

Lake Superior

US4MN1FH

Usage band
Approach · code 4
Current edition
2.1
Features
60
S-57 layers
26
Published
Jan 11, 2021
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
48.00000° N
South
47.70000° N
West
90.60000° W
East
90.30000° W
Center
47.85000° N, 90.45000° W
Bounds area
218 sq nm
Feature density
0.2756 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
2.3
Smallest layer
1
Largest layer
10
Area sq km
747
Features per sq km
0.08035
  1. RIVERS River 10
  2. DEPARE Depth area 6
  3. DEPCNT Depth contour 5
  4. LIGHTS Light 5
  5. LNDARE Land area 3
  6. M_QUAL Data quality 3
  7. SLCONS Shoreline construction 3
  8. UWTROC Underwater rock 3
  9. LNDMRK 2
  10. SBDARE Seabed area 2
  11. SEAARE Sea area 2
  12. SOUNDG Sounding 2
  13. BCNLAT Lateral beacon 1
  14. BCNSPP Special purpose beacon 1
  15. BUAARE 1
  16. COALNE Coastline 1
  17. CTNARE Caution area 1
  18. CTRPNT 1
  19. DAYMAR 1
  20. FAIRWY Fairway 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.

Editions

Edition Published Metadata
2.1 Jan 11, 2021 metadata.json