The Isaie and Scholastic Martin House in Madawaska is a well-preserved Acadian log house, built using traditional, regional techniques. It is listed on the National Register of Historic Places. Isaie's house features "piece sur piece" log construction and sits atop one of two remaining true root cellars in The Valley. Isaie Martin's grandfather, Francois, was an Acadian. In 1755, the British deported Francois, then aged 11, and other Acadians from Port Royal, Nova Scotia. Francois and his family were among the first Acadians to settle Maine's Saint John River Valley between the Madawaska and Green Rivers. The house is open by appointment year round.