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4 ~ 40 <br />• C1 12 to 29 inches; pale brown (10 YR 6/3) loamy sand brown (10 YR 5/3) moist; weak <br />fine granular parting to fine single grained structure; slightly hard, very friable, <br />non-sticky and non•plastic; calcareous; 40 percent pea gravels in upper 6 inches, <br />some cobbles below; pH 7.6; clear irregular boundary. <br />C2 29 to 70 inches; variously colored (10 YR 5/3, 5/4) stratified sands and gravelly <br />coarse sands, variously colored (10 YR 4/3, 4/4) moist; weak fine granular parting to <br />fine single grained structure; loose, non-sticky, and non•plastic; calcareous; 10 to 25 <br />percent pea gravels in irregular layers; coal fragments mainly below 55 inches; pH <br />8.2. <br />The A horizon is gravelly sandy loam, loam or loamy sand. Some profiles have a very <br />bouldery or stony surface. Coarse fragments increase below 9 inches. Coarse fragments <br />amount to 60 to 80 percent larger than 2 mm and as much as 20 percent larger than 3 inches <br />in some profiles. The soil has a hue of 2.5 Y or 10 YR, value of 5 through 7 dry, 4 or 5 moist, <br />and a chroma of 2 or 3. The described pedon is finer than allowed in sandyskeleta! families; it <br />• is therefore mapped as a variant of the Rivra. <br />• <br />INS Volume 1 4-29-96 <br />