NOAA S-57 chart cell

Saint Marys River

US4MI1PE

Usage band
Approach · code 4
Current edition
3.11
Features
769
S-57 layers
53
Published
Jun 15, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
46.50000° N
South
46.20000° N
West
84.60000° W
East
84.30000° W
Center
46.35000° N, 84.45000° W
Bounds area
224 sq nm
Feature density
3.4339 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
14.5
Smallest layer
1
Largest layer
130
Area sq km
768
Features per sq km
1.00117
  1. DEPCNT Depth contour 130
  2. DEPARE Depth area 122
  3. SLCONS Shoreline construction 56
  4. LIGHTS Light 55
  5. BOYLAT Lateral buoy 46
  6. COALNE Coastline 44
  7. OBSTRN Obstruction 27
  8. SBDARE Seabed area 26
  9. LNDARE Land area 24
  10. CBLOHD 15
  11. UWTROC Underwater rock 15
  12. LNDMRK 14
  13. BCNSPP Special purpose beacon 13
  14. M_QUAL Data quality 13
  15. RIVERS River 13
  16. LNDRGN Land region 11
  17. DRGARE 10
  18. DAYMAR 9
  19. NAVLNE 9
  20. C_AGGR 8

Nearby Chart Cells

Approach usage band

  1. Saint Marys River US4MI1PF - about 12 nm away
  2. Lake Superior US4MI1PD - about 12 nm away
  3. Saint Marys River US4MI2QU - about 18 nm away
  4. Lake Huron - Saint Martin Bay to Marquette Island, MI US4MI1OE - about 18 nm away
  5. Saint Marys River US4MI2QV - about 22 nm away
  6. Lake Superior US4MI2QT - 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
3.11 Jun 15, 2026 metadata.json