The Ronkonkoma Moraine, in the geography of Long Island, forms the southern of two ridges along Long Island's "backbone." [1]
Description
The Ronkonkoma Moraine, a terminal moraine, predates the Harbor Hill Moraine (which reached Long Island during the Wisconsin Glacial Episode); the Harbor Hill Moraine cut through the Ronkonkoma Moraine's western portions. [2]
The Ronkonkoma Moraine and the Harbor Hill Moraine intersect at Lake Success in western Nassau County. [2] Today, the moraine is most prominent in Suffolk County, where it traverses the center of Long Island and forms the South Fork. [3]
Notable summits
- Bald Hill – 331 ft (101 m) [4]
- Telescope Hill – 334 feet (102 m) [5]
See also
References
- ^ Geological Survey: Quaternary History of the New York Bight: retrieved 2013-08-23.
- ^ a b Garvies Point Museum and Reserve: the Geology of Long Island.
- ^ Ph.D, Kathleen M. Fallon (2021-09-24). "Long Island's Dynamic History". ArcGIS StoryMaps. Retrieved 2021-12-20.
- ^ "Holtsville Site The Better One". Suffolk County News. March 7, 1913.("The Bald Hills near Holtsville are the highest land in Suffolk County")
- ^ "Sixty-Seven Fires Reported Last Year From The Selden Observation Tower". The Mid-Island Mail. August 15, 1935.
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Harbor Hill and Ronkonkoma Moraines.