Nor is there any sign of moraines, glacier-scorings or other traces of the ice-age.
Its front rested on Staten Island and Long Island, whose surface features, and a part of whose area, are due to the deposits along the ice front, including terminal moraines and outwash gravel plains.
As the ice receded, it halted at various points, forming moraines and other glacial deposits.
Heavy terminal moraines and outwashed fluviatile plains have been laid on the cuesta remnants, increasing their height as much as 100 ft.
The great ice sheets formed terminal moraines around their border at various halting stages; but the morainic belts are of small relief in comparison to the great area of the ice; they rise gently from the till plains to a height of 50, 100 or more feet; they may be one, two or three miles wide; and their hilly surface, dotted over with boulders, contains many small lakes in basins or hollows, instead of streams in valleys.