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rich in shale minerals, especially in the sand to pebble sized fraction. This shale is softened and <br /> difficult to separate by particle class separates. Mean annual temperature ranges from 45 to 48 <br /> degrees F., and mean annual precipitation is about 27 to 30 inches. <br /> DRAINAGE AND PERMEABILITY: Well drained and moderately well drained. Runoff is <br /> medium and rapid. Permeability is moderately slow. <br /> USE AND VEGETATION: It is used for growing small grains, corn and hay. Many areas are <br /> under native deciduous forest. <br /> DISTRIBUTION AND EXTENT: South central Minnesota. Moderately extensive. <br /> MLRA OFFICE RESPONSIBLE: St. Paul, Minnesota <br /> SERIES ESTABLISHED: Hennepin County, Minnesota, December, 1969. <br /> REMARKS: Diagnostic horizons and features recognized are: Ochric epipedon-the zone from <br /> the surface of the soil to a depth of 13 inches (A horizons); Albic horizon - the zone from 3 to 12 <br /> inches (E1 and E2 horizons); argillic horizon-the zone from 12 inches to 57 inches (B/E, Btl, <br /> Bt2, and Bt3 horizons); Glossoboric subgroup based on interfingering of E into Bt horizon. <br /> ADDITIONAL DATA: Refer to S60 MINN-66-2 for data on the typifying pedon. <br /> National Cooperative Soil Survey <br /> U.S.A. <br /> Svoboda Ecological Resources 1350 Orono Oaks Drive <br /> Project No.:2007-061-03 27 Ron Ridgeway <br />