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S t <br /> Hennepin County Hazard Mitigation Plan Community Profile <br /> � t <br /> E. Geology <br /> The Grantsburg sub lobe of the Des Moines lobe of the Laurentian ice <br /> sheet, the most recent glacier to cross the state, receded from the <br /> Hennepin County area approximately 11,000 years ago. Till (the <br /> unsorted mix of materials deposited by a glacier) from the Des Moines <br /> lobe is gray-brown and contains matter imported from North Dakota <br /> and Canada. The lakes of Hennepin County are proof of the glaciers' <br /> presence. <br /> The Minnesota Geological Survey maps Hennepin as one of the <br /> counties in the generalized distribution map of geological <br /> characteristics for karst formations. <br /> �{It�V'�N Jh/'►/\T/'� �f!"►U/•1 T 1•tt N�1'ti <br /> IVIIl If I1=-ZIU CI: rXCII 010. r_g MU-1 <br /> i - <br /> �.��;e�r�ur„e <br /> I <br /> Cowl*4 K5rR AA' orrwIc-iii 4 <br /> 4'U ilat <br /> thin 100 t of sadime"t cover. <br /> Tend-lon lSwat Amot 4nde lain by <br /> t I r urhan;1*IWArr!tk ainih�n• IN A. <br /> 34 of sediment wirer. <br /> L .. !! lily fLyEUiv elndtidI!rt by <br /> J tt <br /> �d Carver ���±�bedrock i�ltli��� <br /> 30 fL of sedii'�v" It Lti7Y . <br /> dr. � D <br /> F fin Alevmtdr Jr.r.mW m/Yet011 fate <br /> Mmr he mpmduerA wiTh rtllbtrtm. <br /> r)AIII r:nmmttni}v Prnftln dnr <br /> I <br />