Area - Small Scale

The USGS National Hydrography Dataset (NHD) service from The National Map is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of surface water (lakes, ponds, and reservoirs), paths through which water flows (canals, ditches, streams, and rivers), and related entities such as point features (springs, wells, stream gages, and dams). The information encoded about these features includes classification and other characteristics, delineation, geographic name, position and related measures, a "reach code" through which other information can be related to the NHD, and the direction of water flow. The network of reach codes delineating water and transported material flow allows users to trace movement in upstream and downstream directions. In addition to this geographic information, the dataset contains metadata that supports the exchange of future updates and improvements to the data. The NHD is available nationwide in two seamless datasets, one based on 1:24,000 (or larger) scale and referred to as high resolution NHD, and the other based on 1:100,000 scale and referred to as medium resolution NHD. The NHD from The National Map supports many applications, such as making maps, geocoding observations, flow modeling, data maintenance, and stewardship. The NHD is commonly combined with other data themes, such as boundaries, elevation, structures, and transportation, to produce general reference base maps. The National Map download client allows free downloads of public domain NHD data in either Esri File Geodatabase or Shapefile formats. For additional information on the NHD, go to https://www.usgs.gov/national-hydrography/national-hydrography-dataset. See https://apps.nationalmap.gov/help/ for assistance with The National Map viewer, download client, services, or metadata.

Data and Resources

Field Value
dcat_issued 2023-07-21T15:58:11.000Z
dcat_modified 2023-07-21T16:02:08.000Z
dcat_publisher_name GeoPlatform ArcGIS Online
guid https://www.arcgis.com/home/item.html?id=a5596a356db141248e7d24ac2102efe0&sublayer=7
Tags
  • FGDC
  • GDA
  • NGDA
isopen False
metadata_created 2025-12-09T22:23:52.653514
metadata_modified 2025-12-09T22:23:52.653518
notes The USGS National Hydrography Dataset (NHD) service from The National Map is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of surface water (lakes, ponds, and reservoirs), paths through which water flows (canals, ditches, streams, and rivers), and related entities such as point features (springs, wells, stream gages, and dams). The information encoded about these features includes classification and other characteristics, delineation, geographic name, position and related measures, a &quot;reach code&quot; through which other information can be related to the NHD, and the direction of water flow. The network of reach codes delineating water and transported material flow allows users to trace movement in upstream and downstream directions. In addition to this geographic information, the dataset contains metadata that supports the exchange of future updates and improvements to the data. The NHD is available nationwide in two seamless datasets, one based on 1:24,000 (or larger) scale and referred to as high resolution NHD, and the other based on 1:100,000 scale and referred to as medium resolution NHD. The NHD from The National Map supports many applications, such as making maps, geocoding observations, flow modeling, data maintenance, and stewardship. The NHD is commonly combined with other data themes, such as boundaries, elevation, structures, and transportation, to produce general reference base maps. The National Map download client allows free downloads of public domain NHD data in either Esri File Geodatabase or Shapefile formats. For additional information on the NHD, go to <a href='https://www.usgs.gov/national-hydrography/national-hydrography-dataset' target='_blank' rel='nofollow ugc noopener noreferrer'>https://www.usgs.gov/national-hydrography/national-hydrography-dataset</a>. See <a href='https://apps.nationalmap.gov/help/' target='_blank' rel='nofollow ugc noopener noreferrer'>https://apps.nationalmap.gov/help/</a> for assistance with The National Map viewer, download client, services, or metadata.
num_resources 24
num_tags 3
title Area - Small Scale
url https://ngda-portfolio-community-geoplatform.hub.arcgis.com/datasets/geoplatform::area-small-scale-1