NOAA S-57 chart cell

Lake Ontario

US4NY2GH

Usage band
Approach · code 4
Current edition
1.2
Features
169
S-57 layers
33
Published
Sep 24, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
43.50000° N
South
43.20000° N
West
78.30000° W
East
78.00000° W
Center
43.35000° N, 78.15000° W
Bounds area
236 sq nm
Feature density
0.7163 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
5.1
Smallest layer
1
Largest layer
25
Area sq km
809
Features per sq km
0.20885
  1. SBDARE Seabed area 25
  2. UWTROC Underwater rock 23
  3. BUISGL 19
  4. DEPARE Depth area 11
  5. DEPCNT Depth contour 10
  6. OBSTRN Obstruction 8
  7. SLCONS Shoreline construction 8
  8. BUAARE 5
  9. LIGHTS Light 5
  10. LNDRGN Land region 5
  11. RIVERS River 5
  12. SILTNK 5
  13. BRIDGE 4
  14. M_QUAL Data quality 4
  15. COALNE Coastline 3
  16. DAYMAR 3
  17. MAGVAR Magnetic variation 3
  18. RECTRC 3
  19. SOUNDG Sounding 3
  20. BCNLAT Lateral beacon 2

Nearby Chart Cells

Approach usage band

  1. Lake Ontario US4NY2GG - about 13 nm away
  2. Lake Ontario - Hamlin Beach to Braddock Bay, NY US4NY2GI - about 13 nm away
  3. Lake Ontario - Lake Center, North of Point Breeze, NY US4NY2HH - about 18 nm away
  4. Lake Ontario - Lake Center, North of Shadigee, NY US4NY2HG - about 22 nm away
  5. Lake Ontario - North of Hamlin, NY US4NY2HI - about 22 nm away
  6. Lake Ontario US4NY2GF - about 26 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
1.2 Sep 24, 2025 metadata.json