"IL031"|9|"CSP"|"Calcareous spot"|A spot where the surface layer contains carbonates in areas where the surface layer of the named soils in the surrounding map unit is noncalcareous. Effervescence can be detected by dilute hydrochloric acid. Typically .25 to 1.2 acres.|"257919" "IL031"|9|"DEP"|"Depression, closed"|A shallow, saucer-shaped area that is slightly lower on the landscape than the surrounding area and that does not have a natural outlet for surface drainage. Typically .25 to 1.2 acres.|"257920" "IL031"|9|"ERO"|"Severely eroded spot"|An area where on the average 75 percent or more of the original surface layer has been lost because of accelerated erosion. Not used in map units that are named severely eroded, very severely eroded, or gullied. Typically .25 to 1.2 acres.|"257921" "IL031"|9|"ESB"|"Escarpment, bedrock"|A relatively continuous and steep slope or cliff, which generally is produced by erosion but can be produced by faulting, that breaks the general continuity of more gently sloping land surfaces. Exposed earthy material is hard or soft bedrock.|"257922" "IL031"|9|"ESO"|"Escarpment, nonbedrock"|A relatively continuous and steep slope or cliff, which generally is produced by erosion but can be produced by faulting, that breaks the continuity of more gently sloping land surfaces. Exposed earthy material is non soil or very shallow soil.|"257923" "IL031"|9|"GPI"|"Gravel pit"|An open excavation from which soil and underlying material have been removed and used, without crushing, as a source of sand or gravel. Typically .25 to 1.2 acres.|"257924" "IL031"|9|"GRA"|"Gravelly spot"|A spot where the surface layer has more than 35 percent, by volume, rock fragments that are mostly less than 3 inches in diameter in an area that has less than 15 percent rock fragments. Typically .25 to 1.2 acres.|"257925" "IL031"|9|"GSP"|"Gray spot"|Subsurface layer is gray in color where the subsurface layer of the named soils in the surrounding map unit are dark colored. Typically .25 to 1.2 acres.|"257926" "IL031"|9|"MAR"|"Marsh or swamp"|A water saturated, very poorly drained area that is intermittently or permanently covered by water. Sedges, cattails, and rushes are the dominate vegetation in marshes, and trees or shrubs are the dominant vegetation in swamps. Not used in map units where the named soils are poorly drained or very poorly drained. Typically .25 to 1.5 acres.|"257927" "IL031"|9|"MUC"|"Muck spot"|An area with a poorly drained or very poorly drained soil that has a surface layer consisting of organic soil material. The surface layer of the named soils in the surrounding map unit consists of mineral soil material. Typically .25 to 1.2 acres.|"257928" "IL031"|9|"ROC"|"Rock outcrop"|An exposure of bedrock at the surface of the earth. Not used where the named soils of the surrounding map unit are shallow overbedrock or where Rock outcrop is a named component of the map unit. Typically .25 to 1.2 acres.|"257929" "IL031"|9|"SAN"|"Sandy spot"|A spot where the surface layer is loamy fine sand or coarser in areas where the surface layer of the named soils in the surrounding map unit is very fine sandy loam or finer. Typically .25 to 1.5 acres.|"257930" "IL031"|9|"SLP"|"Short, steep slope"|A narrow area of soil having slopes that are at least two slope classes steeper than the slope class of the surrounding map unit.|"257931" "IL031"|9|"WET"|"Wet spot"|A somewhat poorly drained to very poorly drained area that is at least two drainage classes wetter than the named soils in the surrounding map unit. Typically .25 to 1.5 acres.|"257932"