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dark gray (lOYR 4/1) clay films on faces of peds; common black (lOYR 2/1) clayey fillings in old root channels; few dark oxide stains and concretions; about 5 percent coarse fragments; medium acid; clear wavy boundary. (4 to 12 inches thick) Cg--40 to 60 inches; grayish brown (2.SY 5/2) loam; many medium faint light olive brown (2.SY 5/4) and common fine distinct olive yellow (2.SY 6/8) mottles; massive; friable; few black(lOYR 2/1) clayey fillings in old root channels in the upper part; few soft grayish limy segregations; few dark oxide stains; about 5 percent coarse fragments; violent effervescence; mildly alkaline. TYPE LOCATION: Rice County, Minnesota; about 9 miles north of Faribault; 200 feet south and 1,700 feet west of the northeast corner of sec. 7, T. 111 N., R. 20 W. RANGE IN CHARACTERISTICS: Solum thickness and depth to free carbonates range from 30 to 48 inches. Coarse fragments of mixed lithology typically occupy 1 to 8 percent by volume of the solum, but are lacking in the A horizon in some pedons. The A1 and Ap harizons have lOYR hue, value of 2 or 3, and chroma of 1. The A2 horizon has lOYR hue, value of 4 or 5, and chroma of 1 or 2. The A horizon is fine sandy loam, sandy clay loam, loam, silt loam, light clay loam or light silty clay loam. It has weak or moderate structure. It is friable or very friable and is slightly acid or medium acid. The B horizon has 2.SY or SY hue, value of 4 or 5, and chroma of 1, 2, or 3. Distinct or prominent mottles are in most of the B horizon. The upper part of the B horizon typically is heavy loam ar clay loam, but sandy clay loam high in silt, silty clay loam high in sand and light clay are within the range. The lower part of the B horizon is sandy clay loam high in silt, clay loam or loam. The upper 20 inches of the argillic horizon averages between 30 and 35 percent clay and typically 20 to 35 percent fine sand and coarser. B/A clay ratios typically are about 1.4, but range from 1.3 to 1.5. The B2 horizon has moderate or strong subangular or angular blocky structure or weak to strong prismatic structure with blocky secondary structure. The B horizon is friable in the coarser-textured parts and firm in the finer textured parts. Reaction is slightly to very strongly acid in the B 1 horizon and in the upper part of the B2 horizon, and medium acid to neutral in the lower part of the B2 horizon. In the Bt horizon clay films are mostly medium to thick and patchy to continuous. They typically have value of 2 or 3 and chroma of 1 or 2, but in the upper part of the Bt horizons of some pedons they have value of 4 or 5. The C horizon has 2.SY or SY hue. It is mildly or moderately alkaline. COMPETING SERIES: These are the Beardstown, Cantril, Conover, Manheim, Metamora, Monitor, Oran, Riceville, Romulus, Schlev, and Sk•�rg soils in the same family and the similar Ames, Cordova, Havana, Milroy, and Shields soils. Beardstown soils are not as acid in the lower part. of the B horizon and have warmer temperatures. Cantril soils have lOYR hues in the B horizon. Conover soils have higher chroma in the B horizon and typically l 0YR hue in the B and C horizons. Manheim soils have shale fragments throughout and contain less clay. Metamora soils contain more sand in the upper part of the solum. Monitor soils have thicker sola and warmer temperatures. Oran,