Image: 1858 Anthracite Map Detail
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Description: A detail of the 1858 "Geological and Topographical Map of the Anthracite Fields of Pennsylvania," created by Henry D. Rogers, State Geologist.
Title: 1858 Anthracite Map Detail
Credit: Geological and Topographical Map of the Anthracite Fields of Pennsylvania
Author: Henry D. Rogers, State Geologist
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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