2012-03-30_REVISION - M1987013 (3)

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Rio Grande County Area, Colorado (c0 31) Mats Unit Symbol Map Unit Nave Acres in A01 Percent of A01 De Derma cabby Ioarn 1.9 10.5% LuB Luhon loam. 1 to 3 percent slopes 3 1 17.1% TsE Travelers- Garita complex. 5 to 25 percent slopes 13 0 72.5% Totals for Area of Interest 17.9 100.0% Custom Soil Resource Report Map Unit Legend (BURTON PIT) Map Unit Descriptions (BURTON PIT) The map units delineated on the detailed sod maps in a soil survey represent the sods or miscellaneous areas in the survey area The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the sods. On the landscape, however. the sods are natural phenomena. and they have the charactensbc vanability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without inckidang areas of other taxonomic Basses. Consequently. every map unit is made up of the sods or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major sods. Most minor sods have properties similar to those of the dominant sal or soils in the map unit, and thus they do not affect use and management. These are called noncontrasbng, or similar, components. They may or may not be mentioned in a particular map unit descnpton. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting. or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descnptions along with some charactensbcs of each A few areas of minor components may not have been observed, and consequently they are not mentioned in the descnptions, especially where the pattem was so complex that it was impractical to make enough observations to identify all the sots and miscellaneous areas on the landscape The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If 10