Description: This data set is a complete digital hydrologic unit boundary layer of the Subwatershed (12-digit) 6th level for the entire United States. This data set consists of geo-referenced digital data and associated attributes created in accordance with the "Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3" (04/01/2009). http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/water/watersheds/?cid=nrcs143_021630 . Polygons are attributed with hydrologic unit codes, name, size, downstream hydrologic unit, type of watershed, non-contributing areas and flow modification. The data is currently updated through the USGS National Hydrography Dataset (NHD) Program and replicated to NRCS twice per year.
Feature Type: Polygon
Type: DynamicFeatureLayer
Display Field: NAME
Primary Key Field: OBJECTID
Show Map Tips: True
Searchable: True
Identifiable: True
Queryable: True
Can Copy Feature: True
Snappable: True
Snapping Enabled: True
Has Attachments: False
Feature Label: {HUC12} - {NAME}
Feature Description: N/A
Feature Long Description: N/A
Feature Zoom Factor: N/A
Feature Zoom Scale: N/A
Feature Border Color: N/A
Feature Border Width: N/A
Feature Fill Color: N/A
Icon: N/A
Include in Layer List: True
Include in Legend: True
Can Toggle Labels: False
Draw Index: N/A
Legend URL: N/A
Style Name: N/A
Data Provider: Default
Time Zone ID: N/A
Fields:
OBJECTID (Type: Int32, Visible: False, Searchable: False, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
TNMID (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
METASOURCEID [MetaSourceID] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
SOURCEDATADESC [SourceDataDesc] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
SOURCEORIGINATOR [SourceOriginator] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
SOURCEFEATUREID [SourceFeatureID] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
LOADDATE [LoadDate] (Type: DateTime, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
GNIS_ID (Type: Int32, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
AREAACRES [AreaAcres] (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
AREASQKM [AreaSqKm] (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
STATES [States] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
HUC12 (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
NAME [Name] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
HUTYPE [HUType] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
HUMOD [HUMod] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
TOHUC [ToHUC] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
NONCONTRIBUTINGACRES [NonContributingAcres] (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
NONCONTRIBUTINGSQKM [NonContributingSqKm] (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
SHAPE_STAREA__ [SHAPE.STArea()] (Type: Double, Visible: False, Searchable: False, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
SHAPE_STLENGTH__ [Shape.STLength()] (Type: Double, Visible: False, Searchable: False, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
SHAPE [Shape] (Type: Object, Visible: False, Searchable: False, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
Region (Type: String, Visible: False, Searchable: False, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
Subregion (Type: String, Visible: False, Searchable: False, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
AcctUnit (Type: String, Visible: False, Searchable: False, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
HydroUnit (Type: String, Visible: False, Searchable: False, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
SHAPE.STArea() (Type: Double, Visible: False, Searchable: False, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)
SHAPE.STLength() (Type: Double, Visible: False, Searchable: False, Can Symbolize Unique Value: False, Can Symbolize Class Breaks: False, Addressable: True)