The Mixed Wood Plains Ecozone is an ecozone of North America that was defined by the Commission for Environmental Cooperation to reconcile the American and Canadian land classification systems. According to the CEC, the Mixed Wood Plains of North America is a Level II Ecoregion 8.1, which includes the Mixedwood Plains of Canada, and the adjoining areas of the United States such as the Eastern Great Lakes and Hudson Lowlands ecoregion. However, the CEC atlas also includes areas of Wisconsin, Maine and New Brunswick in the Mixed Wood Plain ecoregion.