Parent Layer: Hydrologic Unit Code 10 Label

Name: Hydrologic Unit Code 10 Name and Number Label

Display Field: NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This layer represents the Hydrologic Unit Code 10 Name and Number Label. The Hydrologic Unit Code 10 Name and Number Label layer is not visible out beyond 1:866,685. Nested 10-digit HUC watersheds were originally created for Fisheries Management - Westslope Cutthroat Trout management purposes. As per the previous established rule set, these watersheds were created solely based on hydrological principles so they are widely applicable to a variety of disciplines. The HUC Watersheds of Alberta collection of feature classes is intended to define hydrologic units that form a standardized baseline which covers the province of Alberta. Successively smaller hydrologic units are nested within larger hydrologic units to create hierarchal watershed boundaries. These standard units are based on sound hydrologic principles (flow direction) and have been reconciled between and within the feature classes that form the dataset. Existing high resolution watersheds or catchment polygons have been collated into larger watershed units to achieve the hierarchical, nested polygon dataset structure. This dataset is produced for the Government of Alberta and is available to the general public. Please consult the Distribution Information of this metadata for the appropriate contact to acquire this dataset. The Hydrologic Unit Code (HUC) Watersheds of Alberta represents a collection of five nested hierarchically structured drainage basin feature classes that have been created using the Hydrologic Unit Code system of classification developed by the United States Geological Survey (USGS) with accommodation to reflect the pre-existing Canadian classification system. The HUC Watersheds of Alberta consist of successively smaller hydrologic units that nest within larger hydrologic units, resulting in a hierarchal grouping of alphanumerically-coded watersheds feature classes. There are currently individual feature classes for HUC 2 (coarsest level), HUC 4, HUC 6, HUC 8 and HUC 10 (finest level). The HUC Watersheds of Alberta co-exists with the Watersheds of Alberta (GOA) as well as a number of other non-GOA watersheds datasets such as the Prairie Farm Rehabilitation Administration watersheds data published by Agriculture and Agri-Food Canada. The alphanumeric watershed coding follows the USGS system and also has a direct link to the Environment Canada Water Survey of Canada coding (as outlined by departmental Water Policy and Operations staff). Where possible, Water Survey of Canada regions (00XX level) were approximated by the HUC 6 level of delineation but some exceptions will be noted. Further delineation past the HUC 10 level may be required where smaller, more refined watershed units are needed. The coding is a ten-digit numeric code with the last two digits representing the unique identifier for the HUC 10 watershed. The first eight digits represent the enclosing HUC 8 watershed. The HUC 8 watersheds have been attributed with the Water Survey Canada region code and a basin name. The basin names follow the names associated with the other HUC watersheds but not the names associated with the Watersheds of Alberta 2011. NOTE: Watershed names may not be indicative of the entire geographic area for which they encompass. For instance, "Brazeau River Above Reservoir" is the watershed directly upstream of the Brazeau Reservoir, and does not include all watersheds upstream of the Brazeau Reservoir. Data Use Limitations GENERAL PUBLIC: This digital data is protected under copyright to the Government of Alberta with all rights reserved and is subject to the conditions outlined in the Informatics Branch License Agreement for Digital Data. GOVERNMENT OF ALBERTA MINISTRIES AND AUTHORIZED AGENCIES: Government of Alberta Ministries: Government of Alberta Ministries and authorized agencies may conditionally use this data for internal business purposes which includes conditional sharing of the data with other third parties (i.e. contractors, stakeholders) if necessary for reasonable use of the data relating to the provision of services to the Crown as represented by each Ministry.

Service Item Id: 445415b6708e4defbabeef08adbaf036

Copyright Text: Copyright Government of Alberta

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MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

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Supports Statistics: true

Has Labels: true

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Extent:

XMin: 170844.32959999982
YMin: 5425575.4867
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Spatial Reference: 102184  (3400)  LatestVCSWkid(0)

Drawing Info:

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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• HUC_10 ( type: esriFieldTypeString, alias: HUC_10, length: 12 )
• HUC_8 ( type: esriFieldTypeString, alias: HUC_8, length: 12 )
• HUC_6 ( type: esriFieldTypeString, alias: HUC_6, length: 12 )
• HUC_4 ( type: esriFieldTypeString, alias: HUC_4, length: 12 )
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