During the summer of 2003 the Mississippi Valley Archaeology Center’s annual Public Field School had the opportunity to excavate some features within an Oneota house structure in the Sand Lake Archaeological District. The house structure was one of the very few such structures in the La Crosse area that archaeologists have ever had the opportunity to investigate. This structure was defined by over 300 post holes, small circular stains left when wooden posts decayed. The structure was probably similar to a wigwam, or a long rectangular building. The field school examined several hearths and storage pits within and outside the structure. For more information about the Sand Lake Archaeological District visit: http://mvac.uwlax.edu/past-cultures/specific-sites/sand-lake/.