File:The physical geography of New York state (1902) (14592284358).jpg

Identifier: physicalgeograph00tarr (find matches)
Title: The physical geography of New York state
Year: 1902 (1900s)
Authors: Tarr, Ralph S. (Ralph Stockman), 1864-1912 Turner, E. T. (Ebenezer Tousey)
Subjects: Physical geography -- New York (State) Glacial epoch Great Lakes (North America) New York (State) -- Climate New York (State) -- Description and travel
Publisher: New York : The Macmillan company London, Macmillan & co., ltd.
Contributing Library: New York Public Library
Digitizing Sponsor: MSN

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
cupy rather small areas. It is this causealso which accounts for the table-lands and mesas of theplateau region of the West.1 These level-topped areas,perhaps deeply dissected by canyons, stand up at a uniformlevel because of protection offered by the hard layers (Figs.41, 42). The plains of several levels in Texas exist in hori-zontal strata;2 and the plains and plateaus of central andwestern New York owe their present form to this condition. The plateau of central, southern and western New Yorkis a very hilly country, but the hills reach to a fairly uni-form elevation, and many of them are nearly level-topped,(Fig. 43) so that, standing upon the crests of the higherhills, one looks across to other crests of nearly the sameelevation. This is because the Upper Devonian strata are 1 Powell Exploration of the Colorado River, 1875, 1-214; Button, Monog. U. S- Geol.Survey, II, 1882. 2 Hill, Araer. Geol., V, 1890, 9-29. THE NEW YORK PUBLIC LIBRARY AtTOft, LENOX ANDTlLBtN F»UNIMTl4NS. /•
Text Appearing After Image:
3hotograph of a model of the dissected plateau of western central New York, near Ithaca.Model of Ithaca sheet (United States Geological Survey) by William cjtranahan). Destructional Plain* 97 coarse, sandy shales which resist the agents of denudation.In western New York, in Chautauqua County, there aretwo plains, (1) that in which Lake Erie is placed, which isfaced on the southern side by a steep escarpment,1 rising(2) to a hilly plateau region in which Lake Chautauqua issituated. At present there seems to be in the rock struc-ture no definite reason for this upland plateau and for theescarpment which separates it from the lower plain; but insouthern Chautauqua County, and across the line, in Penn-sylvania, there are remnants of a conglomerate bed (p. 27),now remaining upon the surface in the form of rockcities,2 where the great blocks, loosened by weathering,and perhaps somewhat disturbed by glacial action, nowstand in confused, and often fantastic arrangement uponthe surface of the

Note About Images