{
"name":"BaseLayers/USGS_NHD_Hydrologic_Units",
"title":"BaseLayers/USGS_NHD_Hydrologic_Units",
"type":"Map Service",
"typeKeywords":["ArcGIS Server","Service","Map Service"],
"description":"The intent of defining Hydrologic Units (HU) within the Watershed Boundary Dataset is to establish a base-line drainage boundary framework, accounting for all land and surface areas. Hydrologic units are intended to be used as a tool for water-resource management and planning activities particularly for site-specific and localized studies requiring a level of detail provided by large-scale map information. The WBD complements the National Hydrography Dataset (NHD) and supports numerous programmatic missions and activities including: watershed management, rehabilitation and enhancement, aquatic species conservation strategies, flood plain management and flood prevention, water-quality initiatives and programs, dam safety programs, fire assessment and management, resource inventory and assessment, water data analysis and water census.  NHD December 17, 2019 https://www.usgs.gov/core-science-systems/ngp/national-hydrography  Download from https://viewer.nationalmap.gov/basic/?basemap=b1&category=nhd&title=NHD%20View",
"extent":[[-252280.58822770487,1325505.6119767837],[3740121.7305086562,4922748.095761388]],

"url":"https://arcgis.water.nv.gov/arcgis/rest/services/BaseLayers/USGS_NHD_Hydrologic_Units/MapServer"
}