Parent Layer: Soils

Name: Hydrologic Units

Display Field: HUC_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Geographic Information Retrieval and Analysis System (GIRAS) was developed in the mid 70s to put into digital form a number of data layers which were of interest to the USGS. One of these data layers was the Hydrologic Units. The map is based on the Hydrologic Unit Maps published by the U.S. Geological Survey Office of Water Data Coordination, together with the list descriptions and name of region, subregion, accounting units, and cataloging unit. The hydrologic units are encoded with an eight- digit number that indicates the hydrologic region (first two digits), hydrologic subregion (second two digits), accounting unit (third two digits), and cataloging unit (fourth two digits). The data produced by GIRAS was originally collected at a scale of 1:250K. Some areas, notably major cities in the west, were recompiled at a scale of 1:100K. In order to join the data together and use the data in a geographic information system (GIS) the data were processed in the ARC/INFO GUS software package. Within the GIS, the data were edgematched and the neatline boundaries between maps were removed to create a single data set for the conterminous United States. NOTE: A version of this data theme that is more throughly checked (though based on smaller-scale maps) is available here: http://water.usgs.gov/lookup/getspatial?huc2m HUC, GIRAS, Hydrologic Units, 1:250</SPAN></P></DIV></DIV></DIV>

Service Item Id: ae1e32177481463080a3062f592342be

Copyright Text: <origin>Steeves, Peter and Douglas Nebert</origin> <pubdate>1994</pubdate> <title Sync="TRUE" >huc250k</title> <edition>1</edition> <geoform Sync="TRUE" >vector digital data</geoform> -<serinfo> <sername>Open-File Report</sername> <issue>94-0236</issue> </serinfo> -<pubinfo> <pubplace>Reston, Virginia</pubplace> <publish>U.S. Geological Survey</publish> </pubinfo> <onlink>http://water.usgs.gov/lookup/getspatial?huc250k</onlink>

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MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 256218.4023000002
YMin: 4757465.8531
XMax: 307196.51889999956
YMax: 4806072.9177
Spatial Reference: 26918  (26918)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: HUC_NAME
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: Irondequoit-Ninemile
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  Label: Lake Ontario
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Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: true
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Supports Query Analytic: true
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HasZ: false

HasM: false

Has Attachments: false

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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• MCGIS.Hydrologic_Units.AREA ( type: esriFieldTypeDouble, alias: MCGIS.Hydrologic_Units.AREA )
• PERIMETER ( type: esriFieldTypeDouble, alias: PERIMETER )
• HUC250K_ ( type: esriFieldTypeInteger, alias: HUC250K_ )
• HUC250K_ID ( type: esriFieldTypeInteger, alias: HUC250K_ID )
• HUC_CODE ( type: esriFieldTypeString, alias: HUC_CODE, length: 8 )
• HUC_NAME ( type: esriFieldTypeString, alias: HUC_NAME, length: 39 )
• REG ( type: esriFieldTypeString, alias: REG, length: 2 )
• SUB ( type: esriFieldTypeString, alias: SUB, length: 4 )
• ACC ( type: esriFieldTypeString, alias: ACC, length: 6 )
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• Shape.STLength() ( type: esriFieldTypeDouble, alias: Shape.STLength() )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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