Starting in the 10th century the people of Pineland constructed linear mounds in groups, with the mounds oriented perpendicular to the shoreline, in contrast to the earlier middens parallel to the shoreline. These mounds reached heights of up to  by about 1200, at the end of the Caloosahatchee IIB period.
In the 10th century, people of Pineland constructed linear mounds in groups, with these mounds oriented perpendicular to the shoreline, contrasting with earlier middens aligned parallel to the shoreline. These mounds reached heights of up to  by about 1200, at the end of the Caloosahatchee IIB period.