NOAA S-57 chart cell

Penobscot Bay

US4ME1DH

Usage band
Approach · code 4
Current edition
1.5
Features
4,932
S-57 layers
49
Published
Mar 20, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
44.40000° N
South
44.10000° N
West
69.00000° W
East
68.70000° W
Center
44.25000° N, 68.85000° W
Bounds area
232 sq nm
Feature density
21.2225 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
100.7
Smallest layer
1
Largest layer
1,098
Area sq km
797
Features per sq km
6.18748
  1. DEPCNT Depth contour 1,098
  2. DEPARE Depth area 952
  3. SBDARE Seabed area 747
  4. UWTROC Underwater rock 637
  5. LNDARE Land area 408
  6. COALNE Coastline 258
  7. SLCONS Shoreline construction 194
  8. SEAARE Sea area 101
  9. BOYLAT Lateral buoy 64
  10. OBSTRN Obstruction 60
  11. M_QUAL Data quality 53
  12. LNDRGN Land region 45
  13. RIVERS River 42
  14. LIGHTS Light 28
  15. SOUNDG Sounding 27
  16. PONTON 25
  17. LNDELV 21
  18. CBLARE 20
  19. BUAARE 18
  20. FOGSIG 15

Nearby Chart Cells

Approach usage band

  1. Gulf of Maine to Isle Au Haut US4ME1DI - about 13 nm away
  2. West Penobscot Bay US4ME1DG - about 13 nm away
  3. Gulf of Maine to Vinalhaven Island US4ME1CH - about 18 nm away
  4. Penobscot Bay to Penobscot River US4ME1EH - about 18 nm away
  5. Blue Hill Harbor, Morgan Bay and Union River Bay US4ME1EI - about 22 nm away
  6. Passagassawakeag River US4ME1EG - about 22 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
1.5 Mar 20, 2026 metadata.json