NOAA S-57 chart cell

Florida Keys Sombrero Key to Dry Tortugas

US3FL90M

Usage band
Coastal · code 3
Current edition
37.0
Features
1,936
S-57 layers
47
Published
Mar 19, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
25.02151° N
South
23.89271° N
West
83.12418° W
East
81.05942° W
Center
24.45711° N, 82.09180° W
Bounds area
7,648 sq nm
Feature density
0.2531 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
41.2
Smallest layer
1
Largest layer
308
Area sq km
26,232
Features per sq km
0.0738
  1. SBDARE Seabed area 308
  2. LNDARE Land area 276
  3. COALNE Coastline 242
  4. DEPARE Depth area 211
  5. DEPCNT Depth contour 207
  6. UWTROC Underwater rock 149
  7. M_QUAL Data quality 80
  8. WRECKS Wreck 80
  9. SOUNDG Sounding 49
  10. OBSTRN Obstruction 37
  11. PILPNT 35
  12. SEAARE Sea area 34
  13. LIGHTS Light 24
  14. RESARE 21
  15. SLCONS Shoreline construction 19
  16. BCNSPP Special purpose beacon 15
  17. DAYMAR 15
  18. BOYSPP Special purpose buoy 12
  19. BRIDGE 12
  20. LNDMRK 11

Nearby Chart Cells

Coastal 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
37.0 Mar 19, 2026 metadata.json