NOAA S-57 chart cell

Chesapeake Bay - Kent Island to Pooles Island

US4MD1ED

Usage band
Approach · code 4
Current edition
1.10
Features
2,039
S-57 layers
54
Published
Jun 17, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
39.30000° N
South
39.00000° N
West
76.50000° W
East
76.20000° W
Center
39.15000° N, 76.35000° W
Bounds area
252 sq nm
Feature density
8.1041 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
37.8
Smallest layer
1
Largest layer
301
Area sq km
863
Features per sq km
2.36279
  1. SLCONS Shoreline construction 301
  2. DEPARE Depth area 200
  3. LIGHTS Light 190
  4. DEPCNT Depth contour 185
  5. BOYLAT Lateral buoy 151
  6. COALNE Coastline 127
  7. LNDRGN Land region 104
  8. SBDARE Seabed area 100
  9. OBSTRN Obstruction 94
  10. M_QUAL Data quality 67
  11. SEAARE Sea area 51
  12. LNDARE Land area 47
  13. RIVERS River 37
  14. SOUNDG Sounding 32
  15. DAYMAR 31
  16. WRECKS Wreck 31
  17. CTNARE Caution area 30
  18. BCNLAT Lateral beacon 27
  19. BCNSPP Special purpose beacon 23
  20. LAKARE 21

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
1.10 Jun 17, 2026 metadata.json