NOAA S-57 chart cell

Prince William Sound East side

US3AK21M

Usage band
Coastal · code 3
Current edition
21.4
Features
4,565
S-57 layers
64
Published
May 27, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
61.31662° N
South
59.33698° N
West
147.21148° W
East
145.55985° W
Center
60.32680° N, 146.38567° W
Bounds area
5,835 sq nm
Feature density
0.7824 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
71.3
Smallest layer
1
Largest layer
1,074
Area sq km
20,013
Features per sq km
0.22811
  1. UWTROC Underwater rock 1,074
  2. DEPCNT Depth contour 637
  3. COALNE Coastline 628
  4. DEPARE Depth area 455
  5. LNDARE Land area 448
  6. SBDARE Seabed area 373
  7. RIVERS River 227
  8. OBSTRN Obstruction 99
  9. SLOGRD 72
  10. SEAARE Sea area 58
  11. LNDRGN Land region 53
  12. LIGHTS Light 52
  13. LNDELV 37
  14. ICEARE 34
  15. DAYMAR 33
  16. SLCONS Shoreline construction 29
  17. BCNLAT Lateral beacon 22
  18. WEDKLP 20
  19. LNDMRK 18
  20. BCNSPP Special purpose beacon 17

Nearby Chart Cells

Coastal usage band

  1. Prince William Sound, AK US3AK1IS - about 39 nm away
  2. Prince William Sound, AK US3AK1IR - about 40 nm away
  3. Prince William Sound West side US3AK2HM - about 47 nm away
  4. Prince William Sound, AK US3AK1HS - about 66 nm away
  5. Prince William Sound, AK US3AK1HR - about 67 nm away
  6. Prince William Sound, AK US3AK1JR - about 95 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
21.4 May 27, 2026 metadata.json