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Official Series Description -HA' SN Series Page 3 of 3 <br />annual temperature is 45 to 50 degrees, and mean annual precipitation is 27 to 33 inches. <br />GEOGRAPHICALLY ASSOCIATED SOILS: These are the Ames, Dundm;, Hamel, L_uJhs!r, and <br />Nessel soils which are members of a toposequence with the Hayden soils. Moderately well drained <br />Nessel soils have plane or slightly convex slopes. Poorly drained Ames and Dundas soils have slightly <br />concave to slightly convex slopes with gradient of less than 2 percent. Poorly drained Hamel soils are on <br />toe slopes. Organic soils are common associates in some places. <br />DRAINAGE AND PERMEABILITY: Well drained. Runoff is medium and rapid. Permeability is <br />moderate. <br />USE AND VEGETATION: Mostly cleared and cultivated to corn, soybeans, small grain, and hay. <br />Native vegetation was deciduous forest of maple, basswood, oak, and elm. <br />DISTRIBUTION AND EXTENT: Southeastern Minnesota and in central Iowa. Extensive. <br />MLRA OFFICE RESPONSIBLE: St. Paul, Minnesota <br />SERIES ESTABLISHED: Hennepin County, Minnesota, 1929. <br />ADDITIONAL DATA: Refer to Minnesota Agricultural Experiment Station Central File Code No. 967 <br />for results of some laboratory analysis of the typical pedon. <br />National Cooperative Soil Survey <br />U.S.A. <br />http://ortho.ftw.nrcs.usda.gov/cgi-bin/osd/osdname.cgi?-P 9/14/2004