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Significance Some of the most pivotal questions in human history necessitate the investigation of archaeological sites that are now under water. These contexts have unique potentials for preserving ancient sites without disturbance from later human occupation. The Alpena-Amberley Ridge beneath modern Lake Huron in the Great Lakes offers unique evidence of prehistoric caribou hunters for a time period that is very poorly known on land. The newly discovered Drop 45 Drive Lane and associated artifacts presented here provide unprecedented insight into the social and seasonal organization of early peoples in the Great Lakes region, while the interdisciplinary research program provides a model for the archaeological investigation of submerged prehistoric landscapes.

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Engraved and carved bone and stone artifacts capture our imaginations and are known worldwide from archaeological contexts, but they are seemingly rare and oftentimes difficult to recognize. While preservation issues play a role in the limited recovery of early art objects, research on incised stones and bone from the Gault site in Texas demonstrates that an expectation to find such artifacts plays a key role in their identification and recovery. The presence of incised stones found by collectors at Gault alerted archaeologists to the potential for finding early art in systematic excavations. To date, 11 incised stones and one engraved bone of Paleoindian age (13,000–9,000 calibrated years before present) have been recovered and of these, the Clovis artifacts are among the earliest portable art objects from secure context in North America. The presence of incised stone and bone at Gault led to the development of an examination protocol for identifying and analyzing engraved and incised artifacts that can be applied to a wide variety of archaeological contexts.

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