McKees Rocks Mound before excavation, July 1896.
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The mound with vegetation cleared before excavation began (July 1896).

Credit: Courtesy of Carnegie Museum of Natural History, Pittsburgh

In 1896, Frank M. Gerrodette of the Carnegie Museum conducted the first excavation of the McKees Rocks Mound and discovered three construction layers, each of which contained human burials. The lower layers dated to the Early Woodland Adena culture, ca. 1200BC-500BC, and the upper layer to the Middle Woodland Hopewell culture, ca. 500BC-800AD. Today only a remnant of the original mound survives.

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