Forest physiography; physiography of the United States and principles of soils in relation to forestry . r geologic description see N. S. Shaler, Report on the Geology of Marthas Vineyard,7th Ann. Kept. U. S. Geol. Surv., 1885-86, pp. 303-363. ATLANTIC AND GULF COASTAL PLAIN 507 of the tail are represented by Orient and Montauk points on the east; the head is representedby the blunt western end with its mouth-Hke extension at Coney Island. The south shoreis double: the inner or primary shore hne is the border of a broad lagoon — Great South Bayand its extensions; the outer shore line consists
Forest physiography; physiography of the United States and principles of soils in relation to forestry . r geologic description see N. S. Shaler, Report on the Geology of Marthas Vineyard,7th Ann. Kept. U. S. Geol. Surv., 1885-86, pp. 303-363. ATLANTIC AND GULF COASTAL PLAIN 507 of the tail are represented by Orient and Montauk points on the east; the head is representedby the blunt western end with its mouth-Hke extension at Coney Island. The south shoreis double: the inner or primary shore hne is the border of a broad lagoon — Great South Bayand its extensions; the outer shore line consists of narrow sand reefs of remarkably regularoutline. The eastern half of the northern shore is without notable indentations, but the west-ern half is deeply embayed by a dozen or more well-developed fiords with steep sides and note-worthy depth of water. ? GLACIAL TOPOGRAPHY TERMINAL MORAINES The principal relief features of Long Island are associated with adouble line of eastward-trending glacial moraines fronted by extensiveoutwash plains of loose alluvium, Fig. 195. The southernmost is known as. LEGENDI Covered with ic6 at the Ronkonkoma $tagoCovered with Ice at the Harbor Hill stags 73 7V Fig. 195. Relative positions of the ice during the two stages of the Wisconsin glaciation.(Veatch, U. S. Geol. Surv.) the Ronkonkama moraine. Its eastern extension gives character to thatend of Long Island, and with the eastern extension of the Harbor Hill,or northern, moraine encloses a large body of water known as PeconicBay. The Ronkonkama moraine is remarkable for the large body ofwater it encloses and after which it was named. Lake is by far the largest lake on Long Island and extends about 25 feetbelow sea level. The two moraines are often referred to as the back-bone of Long Island, though it should be noted that it is a compoundbackbone, for east of Huntington the two moraines diverge more andmore and enclose broad sub-level tracts between them. The seaward slope of
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
