NOAA S-57 chart cell

Lake Michigan - Indiana Harbor to Gary Harbor, IN

US4IN1CC

Usage band
Approach · code 4
Current edition
2.4
Features
565
S-57 layers
46
Published
Apr 22, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
41.70000° N
South
41.40000° N
West
87.60000° W
East
87.30000° W
Center
41.55000° N, 87.45000° W
Bounds area
243 sq nm
Feature density
2.327 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
12.3
Smallest layer
1
Largest layer
77
Area sq km
833
Features per sq km
0.67845
  1. SLCONS Shoreline construction 77
  2. DEPARE Depth area 66
  3. DEPCNT Depth contour 63
  4. BUISGL 50
  5. BRIDGE 39
  6. PONTON 29
  7. LIGHTS Light 27
  8. OBSTRN Obstruction 26
  9. COALNE Coastline 25
  10. LNDMRK 16
  11. PIPSOL 16
  12. BCNLAT Lateral beacon 15
  13. CBLOHD 12
  14. LAKARE 9
  15. SILTNK 9
  16. DAYMAR 7
  17. SEAARE Sea area 7
  18. LNDARE Land area 6
  19. M_QUAL Data quality 6
  20. RIVERS River 6

Nearby Chart Cells

Approach usage band

  1. Lake Michigan - Burns International Harbor, IN US4IN1CD - about 13 nm away
  2. Lake Michigan - Little Calumet River, IL US4IL1WX - about 13 nm away
  3. Lake Michigan - Calumet River to Chicago Harbor Entrance, IL US4IL1XY - about 18 nm away
  4. Lake Michigan - North of Burns International Harbor, IN US4IN1DD - about 22 nm away
  5. Lake Michigan - Chicago Harbor to Chicago River, IL US4IL1XX - about 22 nm away
  6. Lake Michigan - Beverly Shores, IN US4IN1CE - about 27 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
2.4 Apr 22, 2026 metadata.json