Forest physiography; physiography of the United States and principles of soils in relation to forestry . PART OF CLYDE QUADRANGLE PART OF CANANDAIGUA QUADRANGLE. Fig. 292.—^ Topographic types, central New York, i, rock forms, non-glacial; 2, till-covered slopes,expressionless; 3, drumlins;4, moraine. (Fairchild.) LOWLAND OF CENTRAL NEW YORK 719 portions of Michigan, where the estimated number is 5000; and (c) thedrumHn area of central New York. The last-named is a belt about 35miles wide bordering the southern side of Lake Ontario and about 140miles long, from the Niagara River to Syracuse; th
Forest physiography; physiography of the United States and principles of soils in relation to forestry . PART OF CLYDE QUADRANGLE PART OF CANANDAIGUA QUADRANGLE. Fig. 292.—^ Topographic types, central New York, i, rock forms, non-glacial; 2, till-covered slopes,expressionless; 3, drumlins;4, moraine. (Fairchild.) LOWLAND OF CENTRAL NEW YORK 719 portions of Michigan, where the estimated number is 5000; and (c) thedrumHn area of central New York. The last-named is a belt about 35miles wide bordering the southern side of Lake Ontario and about 140miles long, from the Niagara River to Syracuse; this area probably in-cludes not less than 10,000 drumlin crests; 15 drumlins to the squaremile is common, though the average is about 3 to the square mile. On the south the drumlin area of central New York reaches up thenorth-facing slope of the Allegheny plateau, where it fades off into smoothdrift or is lost in the bolder relief of the rock hills. The most abruptending of the drumlin topography is along the crests of ancient drainagelevels, as between Victory and Geneva, New York. The most massivedevelopment is on the low ground north of Finger Lakes a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
