File:Chicago Portage National Historic Site.png
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Original file (2,134 × 2,159 pixels, file size: 1.41 MB, MIME type: image/png)
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This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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Summary
| Description |
English: This map shows the ancient course of the Des Plaines River, in blue, overlayed on the current course of that river. This ancient river is the river used by travelers during the roughly two thousand years of the portage's use. The map also shows the western end of the portage that is still preserved within the Chicago Portage National Historic Site. |
| Date | |
| Source | United States Geological Survey for the underlying aerial photo plus my own work for the overlay based on Knight, Robert; Zeuch, Lucius Henry (1928). The Location of the Chicago Portage Route of the Seventeenth Century. Chicago Historical Society |
| Author | Joe Bfsplk |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 08:25, 29 April 2024 | 2,134 × 2,159 (1.41 MB) | Joe Bfsplk | Uploaded own work with UploadWizard |
File usage
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