NOAA S-57 chart cell

Girard Junction to Erie, PA

US4PA1IB

Usage band
Approach · code 4
Current edition
1.1
Features
327
S-57 layers
29
Published
Aug 11, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
42.30000° N
South
42.00000° N
West
80.40000° W
East
80.10000° W
Center
42.15000° N, 80.25000° W
Bounds area
241 sq nm
Feature density
1.3595 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
11.3
Smallest layer
1
Largest layer
82
Area sq km
825
Features per sq km
0.39636
  1. SLCONS Shoreline construction 82
  2. DEPARE Depth area 41
  3. RIVERS River 38
  4. DEPCNT Depth contour 37
  5. COALNE Coastline 31
  6. SBDARE Seabed area 13
  7. LNDRGN Land region 11
  8. RECTRC 10
  9. BUISGL 9
  10. LIGHTS Light 8
  11. BUAARE 5
  12. LNDARE Land area 5
  13. M_QUAL Data quality 5
  14. SOUNDG Sounding 5
  15. LAKARE 4
  16. SILTNK 4
  17. CTNARE Caution area 3
  18. BOYSPP Special purpose buoy 2
  19. OBSTRN Obstruction 2
  20. PIPSOL 2

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
1.1 Aug 11, 2025 metadata.json