We have never found any language relative to the mound complexes or mound building in general.  It is also interesting to note that in the vast historical record there is no mention of the Myaamia having any association with the mounds other than they knew they were there and did not disturb them.  There are, however, extensive mound vocabularies in other non-Algonquian languages like Muskogean languages.

Updated: January 7, 2021