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Official Series Description -LESTER Series Page 2 of 3
<br />RANGE IN CHARACTERISTICS: Depth to free carbonates ranges from 20 to 54 inches. Rock
<br />fragments of mixed lithology comprise 1 to 8 percent of the volume of the control section.
<br />The A or Ap horizons have hue of l0YR, value of2 or 3, and chroma of 1 or 2. The E horizon where
<br />present, has value of 3 to 5, and chroma of 1 to 3. The A and E horizons are loam or clay loam, but
<br />sandy loam, fine sandy loam, or silt loam is within the range. They range from moderately acid to
<br />neutral.
<br />The Bt horizon has hue of IOYR or 2.SY, value of 4 or 5, and chroma of 3 or 4. It is clay loam or loam
<br />and has 24 to 35 percent clay and 30 to 45 percent sand. The B/ A clay ratios range from 1.2 to 1.4. It is
<br />strongly acid to slightly acid in the upper part and moderately acid to neutral in the lower part. A Bw
<br />horizon is sometimes present below the Bt.
<br />The Bk horizon has hue of 1 0YR or 2.5YR, value of 4 or 5, and chroma of 3 to 6. The Bk horizon is
<br />loam or clay loam. It is slightly alkaline or moderately alkaline. Relict redoximorphic features are
<br />present in some pedons.
<br />The C horizon has hue of 2.SY or 1 0YR, value of 4 to 6, and chroma of 3 to 6. It is loam or clay loam. It
<br />is slightly alkaline or moderately alkaline. Relict redoximorphic features are present in some pedons.
<br />COMPETING SERIES: These are the Angus, Argyle, Baltimore, Bassett, Blooming, Caleb,
<br />Dowagiac, Dunbridge, Gara, Koronis, Lauramie, Longlois, Lydick, Mohawk, Neda, Newcomer, Oneco,
<br />Orwood, Racine, Razort, Sebbo, Taopi, Waucoma, and Winneshiek soils in the same family. Angus and
<br />Sebbo soil have saturation in the lower third of the series control section. Argyle, Baltimore, and Oneco
<br />soils have B horizons with 7 .5YR or redder hue. Bassett soils are very strongly acid to moderately acid
<br />in the upper part of the Bt horizon. Blooming and Racine soils have 15 to 35 percent sand in the upper
<br />part of the particle-size control section. Caleb soils have some subhorizons that have more than 45
<br />percent in the lower part of the control section. Dowagiac and Koronis soils have less than 24 percent
<br />clay in the lower one third of the particle-size control section. Dunbridge, Waucoma, Newcomer and
<br />Winneshiek soils have sola terminated by bedrock at depths above 60 inches. Gara soils average less
<br />than 2 percent rock fragments in the control section. Longlois, Lydic, and Neda soils have more than 8
<br />percent rock fragments in some subhorizon of the control section. Lauramie soils have more than 45
<br />percent sand in some subhorizon in the middle part of the control section. Mohawk soils have a higher
<br />content of silt and have dark colors in the B horizon which apparently are inherited from dark shale.
<br />Orwood soils have no rock fragments in the particle-size control section. Razort soils have less than 30
<br />percent sand in the control section.
<br />GEOGRAPHIC SETTING: These soils have convex slopes on moraines and till plains. Slope
<br />gradients range from 5 to 70 percent. They formed in calcareous, loamy glacial till of late Wisconsinan
<br />Age. Mean annual temperature ranges from 45 degrees to 52 degrees F. Mean annual precipitation
<br />ranges from 25 to 33 inches. Frost free days range from 125 to 165. Elevations range from 700 to 1600
<br />feet.
<br />GEOGRAPHICALLY ASSOCIATED SOILS: These include the Cordova, Dundas, Glencoe, Hamel,
<br />Houghton, Klossner, Le Sueur, Muskego, and Nessel soils. Poorly drained Cordova and somewhat
<br />poorly and poorly drained Dundas soils are on flats and upper drainageways with a high seasonal water
<br />table. Very poorly drained Glencoe, Houghton, Klossner, and Muskego soils are mostly in depressions.
<br />Poorly drained Hamel soils are on foot and toe slopes. Moderately well drained Le Sueur and Nessel
<br />soils are on slightly elevated flats and gently convex slopes.
<br />http://ortho.ftw.nrcs.usda.gov/cgi-bin/osd/osdname.cgi?-P 8/16/2006
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