NOAA S-57 chart cell

Alaska

US4AK5KL

Usage band
Approach · code 4
Current edition
1.0
Features
4,806
S-57 layers
45
Published
Jan 7, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
56.40000° N
South
56.10000° N
West
133.80000° W
East
133.20000° W
Center
56.25000° N, 133.50000° W
Bounds area
360 sq nm
Feature density
13.3316 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
106.8
Smallest layer
1
Largest layer
1,082
Area sq km
1,236
Features per sq km
3.88688
  1. DEPCNT Depth contour 1,082
  2. DEPARE Depth area 912
  3. UWTROC Underwater rock 681
  4. SBDARE Seabed area 578
  5. LNDARE Land area 560
  6. COALNE Coastline 422
  7. OBSTRN Obstruction 152
  8. WEDKLP 93
  9. RIVERS River 55
  10. LNDELV 29
  11. SEAARE Sea area 26
  12. M_QUAL Data quality 24
  13. SLCONS Shoreline construction 23
  14. LNDRGN Land region 22
  15. SOUNDG Sounding 16
  16. VEGATN 16
  17. SLOGRD 13
  18. DAYMAR 10
  19. LIGHTS Light 10
  20. BOYLAT Lateral buoy 9

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
1.0 Jan 7, 2025 metadata.json