https://ift.tt/2wwdHAe How the Ice Age Shaped New York Geology, Ice, Rock and Stone Long ago, the region lay under an ice sheet thousands of feet thick. It terminated abruptly in what are now the boroughs, leaving the city with a unique landscape. WILLIAM J. BROAD https://ift.tt/2HiDuw0 June 5, 2018 at 05:30AM
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