In 2012, we followed up by testing the other mound at Roberts Island. It has a house on it (constructed ca. 1950s A.D.) but otherwise looks reasonably intact. We excavated a trench on this mound, to see if it was constructed in one stage or several, and during which period. The results suggest it was a single stage construction, probably dating to the Late Woodland period (around the same time as the other mound).
Also in 2012, we excavated several test trenches in off-mound areas at the Crystal River. The trenches revealed deep, stratified midden layers, some of which had a number of features such as posts and pits.
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