Skip to main content
Advanced Search

Filters: Tags: HUC8 (X) > Types: ArcGIS Service Definition (X) > Types: Map Service (X)

3 results (8ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
thumbnail
This data set is a complete digital hydrologic unit boundary layer of the Subbasin (10-digit) 5th level for the entire United States, clipped to the Northeast. A hydrologic unit (HU) is a drainage area delineated to nest a multi-level, hierarchical drainage system. Its boundaries are defined by a hydrographic and topographic criteria that delineate an area of land upstream from a specific point on a river, stream, or similar surfaces waters. An HU can accept surface water directly from upstream drainage areas, and indirectly from associated surface areas such as remnant, non-contributing, and diversions to form a drainage area with single or multiple outlet points. HUs are only synonymous with classic watersheds...
thumbnail
This data set is a complete digital hydrologic unit boundary layer of the Subbasin (8-digit) 4th level for the entire United States, clipped to the Northeast. A hydrologic unit (HU) is a drainage area delineated to nest a multi-level, hierarchical drainage system. Its boundaries are defined by a hydrographic and topographic criteria that delineate an area of land upstream from a specific point on a river, stream, or similar surfaces waters. An HU can accept surface water directly from upstream drainage areas, and indirectly from associated surface areas such as remnant, non-contributing, and diversions to form a drainage area with single or multiple outlet points. HUs are only synonymous with classic watersheds...


    map background search result map search result map Watershed Boundary Dataset, Hydrologic Unit Code 8 for the Northeast Watershed Boundary Dataset, Hydrologic Unit Code 10 for the Northeast Upper Tennessee River Basin Aquatic Conservation Projects Upper Tennessee River Basin Aquatic Conservation Projects Watershed Boundary Dataset, Hydrologic Unit Code 8 for the Northeast Watershed Boundary Dataset, Hydrologic Unit Code 10 for the Northeast