NOAA S-57 chart cell

Florida Keys - Straits of Florida and Florida Bay

US4FL1GX

Usage band
Approach · code 4
Current edition
2.3
Features
2,679
S-57 layers
48
Published
Jan 29, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
25.20000° N
South
24.90000° N
West
80.70000° W
East
80.40000° W
Center
25.05000° N, 80.55000° W
Bounds area
294 sq nm
Feature density
9.1147 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
55.8
Smallest layer
1
Largest layer
444
Area sq km
1,008
Features per sq km
2.65742
  1. DEPCNT Depth contour 444
  2. DEPARE Depth area 420
  3. LNDARE Land area 301
  4. COALNE Coastline 204
  5. SBDARE Seabed area 176
  6. CTNARE Caution area 167
  7. SLCONS Shoreline construction 160
  8. DAYMAR 131
  9. BCNLAT Lateral beacon 127
  10. SEAARE Sea area 71
  11. VEGATN 67
  12. RETRFL 44
  13. PILPNT 43
  14. LIGHTS Light 39
  15. LNDRGN Land region 27
  16. WRECKS Wreck 26
  17. UWTROC Underwater rock 22
  18. M_QUAL Data quality 21
  19. SOUNDG Sounding 21
  20. BOYSPP Special purpose buoy 20

Nearby Chart Cells

Approach usage band

  1. Everglades - Florida Bay US4FL1GW - about 16 nm away
  2. Straits of Florida US4FL1GY - about 16 nm away
  3. Straits of Florida US4FL1FX - about 18 nm away
  4. Florida Keys - Little Blackwater Sound and Manatee Bay US4FL1HX - about 18 nm away
  5. Everglades - Whitewater Bay US4FL1HW - about 24 nm away
  6. Florida Keys - Barnes Sound to Biscayne Bay and Straits of Florida US4FL1HY - about 24 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
2.3 Jan 29, 2026 metadata.json