NOAA S-57 chart cell

Lake Michigan - Black George Creek to Ogontz Bay, MI

US4MI2NM

Usage band
Approach · code 4
Current edition
3.0
Features
563
S-57 layers
34
Published
Sep 17, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
45.90000° N
South
45.60000° N
West
87.00000° W
East
86.70000° W
Center
45.75000° N, 86.85000° W
Bounds area
226 sq nm
Feature density
2.4869 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
16.6
Smallest layer
1
Largest layer
111
Area sq km
776
Features per sq km
0.72505
  1. DEPARE Depth area 111
  2. DEPCNT Depth contour 109
  3. COALNE Coastline 69
  4. LNDARE Land area 50
  5. LNDRGN Land region 31
  6. OBSTRN Obstruction 30
  7. FSHFAC 27
  8. UWTROC Underwater rock 27
  9. SEAARE Sea area 18
  10. SBDARE Seabed area 14
  11. RIVERS River 10
  12. M_QUAL Data quality 8
  13. BOYLAT Lateral buoy 7
  14. BUISGL 6
  15. PILPNT 6
  16. BUAARE 4
  17. LIGHTS Light 4
  18. RESARE 4
  19. SLCONS Shoreline construction 4
  20. WEDKLP 4

Nearby Chart Cells

Approach usage band

  1. Lake Michigan - Garden Peninsula - Nahma to Parent Bay, MI US4MI2NN - about 13 nm away
  2. Lake Michigan - Little Bay De Noc - Escanaba to Gladstone, MI US4MI2NL - about 13 nm away
  3. Lake Michigan - Little Bay de Noc - Rapid River, MI US4MI2OM - about 18 nm away
  4. Lake Michigan - Saint Martin Island, MI to Washington Island, WI US4WI1LS - about 18 nm away
  5. Lake Michigan - Big Bay de Noc - Fishdam, MI US4MI2ON - about 22 nm away
  6. Lake Michigan - Summer Island and Poverty Island, MI US4MI2MN - about 22 nm away

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
3.0 Sep 17, 2025 metadata.json