NOAA S-57 chart cell

North Pacific Ocean - Cape Mendocino to Punta Gorda, CA

US4CA2KD

Usage band
Approach · code 4
Current edition
1.0
Features
1,562
S-57 layers
30
Published
Apr 22, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
40.50000° N
South
40.20000° N
West
124.50000° W
East
124.20000° W
Center
40.35000° N, 124.35000° W
Bounds area
247 sq nm
Feature density
6.3174 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
52.1
Smallest layer
1
Largest layer
655
Area sq km
848
Features per sq km
1.84185
  1. UWTROC Underwater rock 655
  2. DEPARE Depth area 168
  3. DEPCNT Depth contour 166
  4. SBDARE Seabed area 150
  5. LNDARE Land area 135
  6. LNDELV 48
  7. COALNE Coastline 39
  8. M_QUAL Data quality 36
  9. RIVERS River 30
  10. BUISGL 29
  11. OBSTRN Obstruction 24
  12. WEDKLP 16
  13. WATTUR 11
  14. SEAARE Sea area 10
  15. SLOGRD 9
  16. LNDRGN Land region 8
  17. SOUNDG Sounding 7
  18. CTNARE Caution area 4
  19. ADMARE 3
  20. BRIDGE 3

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 Apr 22, 2026 metadata.json