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rtSHINGTON ANO RAMSEY COUNTIES, MINNESOTA .nick. The subsoil is about 22 inches thick. The ,per part is brown silt loam. The middle part is reddish own silt loam. The lower part is reddish brown loam. le underlying material is reddish brown and dark red- >h brown gravelly sand and gravelly coarse sand. In ,me delineations slope is less than 2 percent or more an 6 percent. In the southern part of the survey area e surface layer is thicker and darker colored than typi- Included with this soil in mapping are small areas of letek, Rosholt, Cambia, Brill, Poskin, and Barronett ,nswy substratum soils. Chetek and Rosholt soils have is -;fay in the subsoil than the Antigo soil. Campia soils the silty materials to a depth of 60 inches or more. The ietek. Rosholt, and Cambia soils occupy positions on a landscape similar to the Antigo soils and make up 2 5 percent of the delineation. The moderately well ained Brill soils, the somewhat poorly drained Poskin iils, and the poorly drained Barronett soils occupy small ainageways and depressions and make up less than 5 trcent of the delineation. This Antigo soil has moderate permeability in the silty per part of the profile and very rapid permeability in e sandy underlying material. The available water ca- tcity is moderate. Surface runoff is medium. Natural rtility is medium, and the organic matter content is oderate. Most areas of this soil are farmed, but many areas are pi( )eing converted to urban uses. This soil has tod potential for crops and grass and legume hay or isture. It has good potential as building sites. It has for potential for most sanitary facilities. This soil is well suited to corn, soybeans, small grains, id grass and legume hay and pasture. If the soil is titivated, there is a hazard of erosion unless adequate Inservation practices are used. Most areas are too nail or too irregular in shape or slopes are too short for pacing or contour farming. Minimum tillage and forage cps in the rotation also help to control erosion. In drier tars drought may be a problem due to the moderate Bailable water capacity of the soil. This soil is well suited to pasture and hay production. vergrazing should be avoided because it increases the Ik of erosion. Proper stocking, rotation grazing, and sed control will help keep a good vegetative cover on e soil. This soil is well suited to trees, and a few small areas main in woodlots of northern hardwoods. Seedlings id cuttings survive and grow well if competing vegeta- rn is controlled. Control can be accomplished by spray- g, cutting, or girdling trees and by cultivation. This soil has fair suitability as building sites and poor titability for most sanitary facilities. Soil strength is low the silty mantle but is high in the sandy underlying aterial. Susceptibility to frost heave is moderate. Spa - al precautions may be needed when installing roads, rer sidewalks, and parking areas to prevent damage )n )st heave. Sidewalls in the sandy underlying ma- 27 terial have poor stability and may cave in during excava- tion or installation of underground utilities. This can be prevented with temporary retaining walls. Septic tank absorption fields function well in this soil, but unless specially designed systems are installed, there is a hazard of pollution of underground water sup- plies and nearby lakes and streams. Lawns, trees, and shrubs are generally easy to establish and maintain. This soil is a good source of sand and gravel for construction. This soil is in capability subclass Ile and woodland suitability group 2o. 49C—Antigo silt loam, 6 to 12 percent slopes. This gently rolling soil is well drained. It is on crests and sides of hills on pitted outwash plains. Mapped areas are com- monly 15 to 50 acres and irregular in shape. Typically, the surface layer is very dark grayish brown silt loam about 2 inches thick. The subsurface layer is dark grayish brown silt loam about 11 inches thick. The subsoil is about 25 inches thick. The upper part is dark brown silt loam. The lower part is dark brown loamy sand. The underlying material is dark brown gravelly sand. In some areas slope is less than 6 percent or more than 12 percent. In the southern part of the survey area the surface layer is thicker and darker colored than typical. Included with this soil in mapping are small areas of Chetek, Roshoit, Campia, Brill, Poskin, and Barronett sandy substratum soils. The Chetek soil is excessively drained and has a 12- to 20-inch loamy mantle over reddish brown sand and gravel. The Rosholt soil is well drained and has a 20- to 40-inch loamy mantle over reddish brown sand and gravel. The Cambia soil is well drained and has silty material to a depth of 60 inches or more. The Chetek, Rosholt, and Campia soils occupy positions on the landscape similar to the Antigo soils and make up 2 to 10 percent of the delineations. The moder- ately well drained, less sloping Brill soil occupies lower positions on the landscape. The somewhat poorly drained Poskin soil and the poorly drained Barronett sandy substratum soil occupy small drainageways and depressions. The Brill, Poskin, and Barronett sandy sub- stratum soils make up less than 5 percent of the map unit. This Antigo soil has moderate permeability in the silty upper part of the profile and very rapid permeability in the sandy underlying material. The available water ca- pacity is moderate. Surface runoff is medium to rapid. Natural fertility is medium, and the organic matter con- tent is moderate. Most areas of this soil are farmed, but many areas are developed for urban uses. This soil has good potential for cropland and grass and legume hay and pasture. It has good potential for trees. It has fair potential as building sites. It has poor potential for most sanitary facilities. This soil has fair suitability for all the crops commonly grown in the survey area. It warms early in spring and