NOAA S-57 chart cell

Lake Huron - Hammond Bay, MI

US4MI1MF

Usage band
Approach · code 4
Current edition
1.2
Features
196
S-57 layers
25
Published
Jan 29, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
45.60000° N
South
45.30000° N
West
84.30000° W
East
84.00000° W
Center
45.45000° N, 84.15000° W
Bounds area
228 sq nm
Feature density
0.8611 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
7.8
Smallest layer
1
Largest layer
69
Area sq km
781
Features per sq km
0.25107
  1. OBSTRN Obstruction 69
  2. DEPARE Depth area 26
  3. DEPCNT Depth contour 25
  4. M_QUAL Data quality 14
  5. RIVERS River 10
  6. SLCONS Shoreline construction 8
  7. UWTROC Underwater rock 7
  8. COALNE Coastline 4
  9. SBDARE Seabed area 4
  10. BUAARE 3
  11. SEAARE Sea area 3
  12. SOUNDG Sounding 3
  13. BCNLAT Lateral beacon 2
  14. DAYMAR 2
  15. LAKARE 2
  16. LIGHTS Light 2
  17. LNDARE Land area 2
  18. LNDMRK 2
  19. RESARE 2
  20. M_COVR Coverage 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
1.2 Jan 29, 2026 metadata.json