Allegheny Plateau: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Map and links added. | Apr 28, 2025 | ||
| Deleted Web site: Photographs of the Allegheny Plateau and the Allegheny River watershed region. | Apr 22, 2013 | ||
| Add new Web site: Fact Monster - United States - Allegheny Plateau, United States. | Sep 22, 2011 | ||
| Added new Web site: How Stuff Works - Geography - Geography of Allegheny Plateau. | Jul 29, 2008 | ||
| Article added to new online database. | Jul 20, 1998 |
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