NOAA S-57 chart cell

Gunpowder River to Bird River

US5BALED

Usage band
Harbor · code 5
Current edition
1.0
Features
374
S-57 layers
24
Published
Jul 21, 2023
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
39.45000° N
South
39.37500° N
West
76.42500° W
East
76.35000° W
Center
39.41250° N, 76.38750° W
Bounds area
16 sq nm
Feature density
23.8731 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
15.6
Smallest layer
1
Largest layer
99
Area sq km
54
Features per sq km
6.96027
  1. SLCONS Shoreline construction 99
  2. COALNE Coastline 79
  3. DEPCNT Depth contour 37
  4. LNDRGN Land region 35
  5. DEPARE Depth area 33
  6. PILPNT 23
  7. LNDARE Land area 18
  8. SOUNDG Sounding 9
  9. OBSTRN Obstruction 6
  10. RIVERS River 6
  11. SEAARE Sea area 6
  12. BRIDGE 4
  13. CBLOHD 3
  14. CBLARE 2
  15. M_NPUB 2
  16. M_QUAL Data quality 2
  17. MAGVAR Magnetic variation 2
  18. SBDARE Seabed area 2
  19. BUISGL 1
  20. FAIRWY Fairway 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 Jul 21, 2023 metadata.json