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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...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Canada,
HUC,
HUC8,
Mexico,
Puerto Rico, All tags...
U.S.,
U.S. Territories,
United States,
Virgin Islands,
WBD,
Watershed Boundary Dataset,
basin,
boundaries,
boundaries,
hydrologic unit,
hydrologic unit code,
hydrology,
inlandWaters,
region,
sub-basin,
sub-region,
subwatershed,
watershed,
watershed boundaries, Fewer tags
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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...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Canada,
HUC,
HUC8,
Mexico,
Puerto Rico, All tags...
U.S.,
U.S. Territories,
United States,
Virgin Islands,
WBD,
Watershed Boundary Dataset,
basin,
boundaries,
boundaries,
hydrologic unit,
hydrologic unit code,
hydrology,
inlandWaters,
region,
sub-basin,
sub-region,
subwatershed,
watershed,
watershed boundaries, Fewer tags
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This data set is a complete digital hydrologic unit boundary layer of the Subbasin (12-digit) 6th 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...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Canada,
Mexico,
Puerto Rico,
U.S.,
U.S. Territories, All tags...
United States,
Virgin Islands,
WBD,
Watershed Boundary Dataset,
basin,
boundaries,
boundaries,
hydrologic unit,
hydrologic unit code,
hydrology,
inlandWaters,
region,
sub-basin,
sub-region,
subwatershed,
watershed,
watershed boundaries, Fewer tags
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