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U.S. Geological Survey Open-File Report 2009-1042

National Assessment of Historical Shoreline Change: A Pilot Study of Historical Coastal Bluff Retreat in the Great Lakes, Erie, Pennsylvania

Return to: Abstract » Introduction » Prior Assessments » Geology, Physiography, and Recession » Methodology » Bluff-Retreat Rates » Conclusion » Acknowledgments » References Cited

Figure 7. Photograph showing bedrock exposure in base of bluff and shingle beach near Presque Isle, Pa. Photograph from Pennsylvania Coastal Resource Management Program.
Figure 7. Photograph showing bedrock exposure in base of bluff and shingle beach near Presque Isle, Pa. Photograph from Pennsylvania Coastal Resource Management Program.

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