Lacelle, D.; Fisher, D. A.; Coulombe, S.; et al. (5 September 2018). "Buried remnants of the Laurentide Ice Sheet and connections to its surface elevation". Scientific Reports 8, 13286 (2018). doi:10.1038/s41598-018-31166-2.
Dyke, A. S.; Prest, V. K. (1987). "Late Wisconsinan and Holocene History of the Laurentide Ice Sheet". Géographie Physique et Quaternaire. 41 (2): 237–263. doi:10.7202/032681ar.
Late Wisconsinan and Holocene History of the Laurentide Ice Sheet, 10.7202/032681ar; Arthur S. Dyke, Victor K. Prest; Geological Survey of Canada; Ottawa, Ontario; 1987; http://id.erudit.org/iderudit/032681ar.
William J. Broad (5 June 2018). "How the Ice Age Shaped New York". The New York Times. Retrieved 24 February 2019. the ice was about 2,000 feet thick over Manhattan