NOAA S-57 chart cell

Lake Ontario

US4NY2GF

Usage band
Approach · code 4
Current edition
1.2
Features
184
S-57 layers
38
Published
Mar 20, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
43.50000° N
South
43.20000° N
West
78.90000° W
East
78.60000° W
Center
43.35000° N, 78.75000° W
Bounds area
236 sq nm
Feature density
0.7799 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
4.8
Smallest layer
1
Largest layer
27
Area sq km
809
Features per sq km
0.22739
  1. UWTROC Underwater rock 27
  2. SBDARE Seabed area 15
  3. COALNE Coastline 14
  4. LNDARE Land area 13
  5. DEPCNT Depth contour 10
  6. OBSTRN Obstruction 10
  7. DEPARE Depth area 9
  8. SLCONS Shoreline construction 9
  9. LNDRGN Land region 8
  10. M_QUAL Data quality 8
  11. PIPSOL 8
  12. RIVERS River 5
  13. CBLOHD 4
  14. LIGHTS Light 4
  15. RECTRC 4
  16. BUAARE 3
  17. SEAARE Sea area 3
  18. BCNLAT Lateral beacon 2
  19. BCNSPP Special purpose beacon 2
  20. BRIDGE 2

Nearby Chart Cells

Approach usage band

  1. Lake Ontario US4NY2GG - about 13 nm away
  2. Lake Ontario - Niagara River to Uneeda Beach, NY US4NY2GE - about 13 nm away
  3. Lake Ontario - Lake Center, North of Olcott, NY US4NY2HF - about 18 nm away
  4. Niagara River - Tonawanda, NY US4NY2FF - about 18 nm away
  5. Lake Ontario - Lake Center, North of Four Mile Creek, NY US4NY2HE - about 22 nm away
  6. Lake Ontario - Lake Center, North of Shadigee, NY US4NY2HG - 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
1.2 Mar 20, 2025 metadata.json