Sheshalik Spit - Beach Ridges

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Part of Cape Krusenstern National Monument. Ancient beaches with archeological remains dating back up to 9,000 years.

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From www.nps.gov/cakr/details.htm :

Nearly 5000 years of prehistory are represented on the 114 well- preserved beach ridges located adjacent to Krusenstern Lagoon (Giddings and Anderson 1986). Sites on the bluff behind the beach ridges may date as early as 9,000 year before present.

Because the ridges accumulated over time, the earliest ridges lie inland, and the most recently formed ridges and bluffs near the shore. This unusual series of beach ridges present, in sequence, detailed evidence of an estimated 9,000 years of prehistoric human use of this coastline. Some archeological sites here are older than well-known remains of ancient Egyptian civilizations.
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