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Books Books 1 - 2 of 2 on ... crest of the escarpment 2400 to 2700 feet high. The Allegheny Front crosses Pennsylvania....
" ... crest of the escarpment 2400 to 2700 feet high. The Allegheny Front crosses Pennsylvania in a sweeping curve toward the northeast for a distance of 230 miles, until it merges obscurely with the zigzags of the anthracite region in the northeastern... "
Regional and Economic Geography of Pennsylvania: Physiography - Page 57
by Walter Sheldon Tower - 1906 - 69 pages
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The Bulletin of the Geographical Society of Philadelphia, Volume 4

Geography - 1907
...Somerset County, in a sweeping curve toward the northeast for a distance of 230 miles, until it merges obscurely with the anthracite region zigzags in the...the Front is unbroken by any large stream, though many steep ravines notch its crest and offer the various routes of communication with the region beyond....
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Forest Physiography: Physiography of the United States and Principles of ...

Isaiah Bowman - Physical geography - 1911 - 759 pages
...of the anthracite region in the northeastern corner of the state. The escarpment is broken only by narrow ravines through which flow the northern branches...Muncy, Loyalsock, Lycoming and Pine creeks, the West 1 Bailey Willis, The Northern Appalachians, Nat. Geog. Mon., 1896, pp. 172-173. Branch, and Beech Creek....
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