
Find out what regions in the Great Lakes have been mapped using the Environmental Sensitivity Index (ESI) method and download detailed information about each ESI atlas.
The table below lists the Great Lakes regions for which ESI maps have been produced and the various formats that are available (indicated by a checkmark).
Note: Some regions may be covered in more than one ESI atlas. Check the atlas indexes to see the exact areas that are included in each atlas.
| Atlas Publication Date |
Arc Export |
MOSS |
Shape file |
ESI Viewer |
Geo DB |
||
|---|---|---|---|---|---|---|---|
| Lake Erie System - 1985 |
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| Lake Huron - 1994 |
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* |
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| Lake Michigan, Eastern - 1985 |
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| Lake Michigan, Northern - 1994 |
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* |
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| Lake Michigan, Southern - 1994 |
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* |
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| Lake Michigan, Western - 1993 |
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* |
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| Lake Ontario - 1993 |
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* |
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| Lake Superior - 1994 |
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* |
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| St. Lawrence River - 1985 |
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| St. Marys River - 1986 |
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| * These atlases are available "as is" in ArcExport format. These files are not supported and there may be issues. They have been adapted to fit the standard ESI data structure as closely as possible. | |||||||
Metadata provides identifying information about an ESI atlas, including what items/regions were mapped, shoreline type definitions, data sources and providers, and geographic reference information. Below are metadata files for the Great Lakes ESI atlases.
- Lake Huron (1994) Metadata [PDF, 198 KB]
- Lake Michigan, Northern (1994) Metadata [PDF, 98 KB]
- Lake Michigan, Southern (1994) Metadata [PDF, 99 KB]
- Lake Michigan, Western (1993) Metadata [PDF, 82 KB]
- Lake Ontario (1993) Metadata [PDF, 88 KB]
- Lake Superior (1994) Metadata [PDF, 90 KB]
Each ESI atlas is composed of several maps covering the region. The files below provide an index for each Great Lakes atlas showing the number and location of the ESI maps included.
- Great Lakes (1985-1994) Index [PDF, 6.4 MB]: Includes indexes for Lake Erie, Lake Huron, Lake Michigan (East, North, West, and South), Lake Ontario, Lake Superior, St. Lawrence River, and St. Marys River.
- Lake Erie (1985) Index [PDF, 86.6 KB]
- Lake Huron (1994) Index [PDF, 103.7 KB]
- Lake Michigan, Eastern (1985) Index [PDF, 108.3 KB]
- Lake Michigan, Northern (1994) Index [PDF, 1.5 MB]
- Lake Michigan, Southern (1994) Index [PDF, 129.8 KB]
- Lake Michigan, Western (1993) Index [PDF, 1.2 MB]
- Lake Ontario (1993) Index [PDF, 1.1 MB]
- Lake Superior (1994) Index [PDF, 1.2 MB]
- St. Lawrence River (1985) Index [PDF, 58.8 KB]
- St. Marys River (1986) Index [PDF, 96.9 KB]
The document below provides a brief introduction to ESI mapping and a description of the files that are available on the DVD for the Great Lakes ESI atlas. You can order a CD/DVD from our Order ESIs page.
-
Great Lakes (1985-1994) Fact Sheet [PDF, 62.6 KB]


