NOAA S-57 chart cell

Lake Huron - Entrance to Port Huron, MI

US5DETQN

Usage band
Harbor · code 5
Current edition
1.4
Features
966
S-57 layers
51
Published
Dec 22, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
43.05000° N
South
42.97500° N
West
82.42500° W
East
82.35000° W
Center
43.01250° N, 82.38750° W
Bounds area
15 sq nm
Feature density
65.1518 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
18.9
Smallest layer
1
Largest layer
228
Area sq km
51
Features per sq km
18.99522
  1. SLCONS Shoreline construction 228
  2. DEPARE Depth area 167
  3. DEPCNT Depth contour 160
  4. BUISGL 67
  5. COALNE Coastline 45
  6. PONTON 31
  7. OBSTRN Obstruction 29
  8. M_QUAL Data quality 25
  9. LIGHTS Light 19
  10. PILPNT 17
  11. BOYLAT Lateral buoy 15
  12. MORFAC 15
  13. SOUNDG Sounding 13
  14. WRECKS Wreck 13
  15. BUAARE 9
  16. SBDARE Seabed area 9
  17. LNDMRK 8
  18. PIPSOL 8
  19. CTRPNT 6
  20. LNDARE Land area 6

Nearby Chart Cells

Harbor 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
1.4 Dec 22, 2025 metadata.json