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Layer: Soil Map Units (ID:0)

View In:   Map Viewer

Name: Soil Map Units

Display Field: MUNAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: OverviewThis feature layer represents the authoritative statewide soil units derived from the U.S. Department of Agriculture's (USDA) Gridded Soil Survery Geopgraphic database (gSSURGO). The polygons in this dataset delineate the boundaries of soil units for use in assisting sustainable forestry, wildlife habitat, soil and water conservation, and public recreation.This dataset is intended for use in planning, management, analysis, and public information purposes. It serves as the primary TDF GIS data source for Tennessee soils.Data AttributesAREASYMBOL: The state area symbol of the mapunit.SPATIALVER: The spatial version of the mapunit.MUSYM: The abbreviated symbol of the soil mapunit.MUKEY: The mapunit key field is found throughout SSURGO and provides a primary link between the geographic and tabular data.MUNAME: The full mapunit name.FARM: The farmland classification of the mapunit.ACRES: Acreage of the mapunit.HYDRICRATING: The hydric rating of the mapunit.LCPRIMARY: The primary land cover classification of the mapunit.LCSECONDARY: The secondary land cover classification of the mapunit.DRAINAGECLASS: The drainage class of the mapunit.HYDROGROUP: The soil hydrologic group code of the mapunit.FROSTFREEDAYS: Number of frost free days in a calendar year, on average, of the mapunit.SOILORDER: The taxonomic soil order of the mapunit.Data MaintenanceThis layer is actively maintained by the TDF Forest Data and Analysis Unit. It is updated periodically to reflect new data publishes from the gSSURGO dataset.

Copyright Text: Soil Survey Staff. Gridded Soil Survey Geographic (gSSURGO) Database for Tennessee. United States Department of Agriculture, Natural Resources Conservation Service. Available online at http://datagateway.nrcs.usda.gov/. 20240912 (202410 official release).

Min. Scale: 500000

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Global ID Field: GlobalID

Type ID Field: SOILORDER

Fields:
Types:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 2/23/2026 7:43:49 PM

Schema Last Edit Date: 2/23/2026 7:43:49 PM

Data Last Edit Date: 1/30/2026 6:25:14 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat