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Etc: Maps Etc: Preglacial Drainage of Western Pennsylvania, 1911

Curated by ACT

A map from 1911 showing the probable preglacial drainage of western Pennsylvania. The limit of glaciation is shown by the broken crossed line.

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Additional Tags
historical map of pennsylvania, map of preglacial drainage of western pennsylvania
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Resource Details
Grade
9th - 10th
Subjects
All Subjects
Resource Type
Graphics & Images
Audiences
For Administrator Use
2 more...
Lexile Measures
0L