NOAA S-57 chart cell

Tomales Bay - Millerton Gulch, CA

US5CA4ID

Usage band
Harbor · code 5
Current edition
1.0
Features
43
S-57 layers
23
Published
Dec 17, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
38.17500° N
South
38.10000° N
West
122.85000° W
East
122.77500° W
Center
38.13750° N, 122.81250° W
Bounds area
16 sq nm
Feature density
2.6961 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
1.9
Smallest layer
1
Largest layer
6
Area sq km
55
Features per sq km
0.78607
  1. COALNE Coastline 6
  2. PILPNT 5
  3. OFSPLF 4
  4. DEPARE Depth area 3
  5. LNDRGN Land region 3
  6. SLCONS Shoreline construction 3
  7. DEPCNT Depth contour 2
  8. RESARE 2
  9. CBLARE 1
  10. LAKARE 1
  11. LNDARE Land area 1
  12. LNDELV 1
  13. M_COVR Coverage 1
  14. M_NPUB 1
  15. M_NSYS 1
  16. M_QUAL Data quality 1
  17. MAGVAR Magnetic variation 1
  18. OBSTRN Obstruction 1
  19. RIVERS River 1
  20. SEAARE Sea area 1

Nearby Chart Cells

Harbor 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 Dec 17, 2025 metadata.json