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Books Books 1 - 1 of 1 on ... to a mile and a half wide, making the terrace. From the terrace there is an abrupt....
" ... to a mile and a half wide, making the terrace. From the terrace there is an abrupt rise to the crest of the escarpment at 2,400 to 2,700 feet. When seen near at hand, however, the terrace looks like a broken region of irregular hills — the result... "
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
...Front, or escarpment (Map, Fig. i), separating it from the central province. Allegheny Escarpmfnt. The Allegheny Front, or escarpment, is often called...the northeast for a distance of 230 miles, until it merges obscurely with the anthracite region zigzags in the northeast corner of the State. Throughout...
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