Looking south from Cobham Hill over surface of the dissected Harrisburg peneplain. Warren County, Pennsylvania. 1909.
Dates
Date Taken
1909
Summary
Looking south from Cobham Hill over surface of the dissected Harrisburg peneplain. Shows the even skylines due to peneplanation. Warren County, Pennsylvania. 1909. Figure 4 in U.S. Geological Survey. Folio 172. 1910.
Summary
Looking south from Cobham Hill over surface of the dissected Harrisburg peneplain. Shows the even skylines due to peneplanation. Warren County, Pennsylvania. 1909. Figure 4 in U.S. Geological Survey. Folio 172. 1910.
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