In 2009, archaeologists on the Submerged New World team located exposed bedrock chert, a possible source of material for making stone tools. This picture shows a fresh exposed face of chert after sampling.

In 2009, archaeologists on the Submerged New World team located exposed bedrock chert, a possible source of material for making stone tools. This picture shows a fresh exposed face of chert after sampling. Image courtesy of Exploring the Submerged New World 2009 Expedition, NOAA-OER.

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