NOAA S-57 chart cell

Puget Sound - Northern Part

US4WA11M

Usage band
Approach · code 4
Current edition
52.1
Features
34
S-57 layers
20
Published
Feb 9, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
48.35584° N
South
47.55634° N
West
123.03627° W
East
122.10709° W
Center
47.95609° N, 122.57168° W
Bounds area
1,793 sq nm
Feature density
0.019 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
1.7
Smallest layer
1
Largest layer
3
Area sq km
6,151
Features per sq km
0.00553
  1. CBLSUB 3
  2. DEPARE Depth area 3
  3. M_QUAL Data quality 3
  4. TSSBND 3
  5. TSSLPT 3
  6. CTNARE Caution area 2
  7. DEPCNT Depth contour 2
  8. M_COVR Coverage 2
  9. SEAARE Sea area 2
  10. C_AGGR 1
  11. COALNE Coastline 1
  12. LNDARE Land area 1
  13. M_NPUB 1
  14. M_NSYS 1
  15. MAGVAR Magnetic variation 1
  16. PRCARE 1
  17. RESARE 1
  18. SOUNDG Sounding 1
  19. TSEZNE 1
  20. UWTROC Underwater rock 1

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
52.1 Feb 9, 2026 metadata.json