Timeline Maps

These timeline maps allow you to see major changes to Maine's ecology. We are focusing presently on changes in river systems, but will add more information as possible.

Hover over images for higher resolution and click the links below to view and compare different date ranges.

Comparison Map
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1800-1849 | 1850-1899 | 1900-1949 | 1950-1999

The zooming functionality is courtesy of Magic Zoom.