An artists conception of the “Great Mound” at the Troyville Earthworks, (16 CT 7), the type site for the Troyville culture mound site in Catahoula Parish, Louisiana. Illustration shows the height and original profile and successive heights and profiles as the mound was dismantled in stages over a 130 year period from the early 1800s to the 1930s. Illustrated by Herb Roe 2011.