Summer Map(PDF) (Map). Minnesota Department of Natural Resources.
"Tamarack Lowlands Subsection Profile"(PDF). Tomorrow's Habitat for the Wild & Rare, An Action Plan for Minnesota Wildlife, Comprehensive Wildlife Conservation Strategy. Division of Ecological Services, Minnesota Department of Natural Resources. 2006. Retrieved December 13, 2013.
"St. Louis Moraines Subsection Profile"(PDF). Tomorrow's Habitat for the Wild & Rare, An Action Plan for Minnesota Wildlife, Comprehensive Wildlife Conservation Strategy. Division of Ecological Services, Minnesota Department of Natural Resources. 2006. Retrieved December 13, 2013.