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INFORMATION SOURCES <br />Bur oak blight. (http://www.myminnesotawoods.umn.edu/2010/09/bur-oak-blight-bob- <br />in-minnesota/). <br />Dutch elm disease. (http://www.extension.umn.edu/garden/yard-garden/trees- <br />shrubs/dutch-elm-disease/). <br />Emerald ash borer. (http://www.mda.state.mn.us/emeraldashborer <br />Mossler, JH. 1990. "Bedrock Geology" Geological Atlas of <br />University of Minnesota. <br />Oak wilt. (http://www.extension.umn.edu/environm71","AAL <br />-woodl <br />minnesota/). <br />Rothaus, R, McFarlane J, Haug J. 2005. Prehistoric and,1111 Archaeology of Elk <br />River Township, Minnesota: Probability Modeling and R aissance Survey <br />Friends of the Mississippi <br />W. H. Houlton Conservation Area NRMP <br />