USGS Hydro Cached Base Map Service from The National Map

​This service is a cached overlay of a cartographic representation of the National Hydrography Dataset (NHD). ​The NHD is a comprehensive set of digital ​geo​spatial data that encodes information about naturally occurring and constructed bodies of surface water​, paths through which water flows​, ​related features​ such as stream gages and dams​​, and additional hydrologic information​. ​It is available nationwide ​in a 1:24,000-scale seamless dataset, referred to as high resolution NHD. The NHD supports many applications, such as making maps, geocoding observations, flow modeling, data maintenance and stewardship. For additional information, go to http://nhd.usgs.gov. Additional datasets are used for small-scale hydrography representation as well​, including medium resolution NHDPlus published by EPA​; USGS Small-Scale hydrography; and bathymetry from ETOPO1 Global Relief, provided by NOAA National Centers for Environmental Information, U.S. Coastal Relief Model.

Data and Resources

Field Value
access_constraints ["Use Constraints: None. Acknowledgement of the originating agencies would be appreciated in products derived from these data.", "Access Constraints: None"]
bbox-east-long -65
bbox-north-lat 71.5
bbox-south-lat 17.625
bbox-west-long -179.999
contact-email tnm_help@usgs.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2018-01-01"}]
frequency-of-update asNeeded
graphic-preview-description Browse graphic showing US representation at small scale.
graphic-preview-file https://thor-f5.er.usgs.gov/ngtoc/metadata/waf/services/base_maps/browse/basemap-hydro-cached.png
graphic-preview-type JPG
licence ["Although these data have been processed successfully on a computer system at the\n U.S. Geological Survey, no warranty expressed or implied is made regarding the accuracy or\n utility of the data on any other system or for general or scientific purposes, nor shall\n the act of distribution constitute any such warranty. This disclaimer applies both to\n individual use of the data and aggregate use with other data. It is strongly recommended\n that these data are directly acquired from a U.S. Geological Survey server, and not\n indirectly through other sources which may have changed the data in some way. It is also\n strongly recommended that careful attention be paid to the contents of the metadata file\n associated with these data. The U.S. Geological Survey shall not be held liable for\n improper or incorrect use of the data described and/or contained herein."]
metadata-date 2018-11-28
metadata-language eng; USA
metadata_type geospatial
old-spatial {"type": "Polygon", "coordinates": [[[-179.999, 17.625], [-65.0, 17.625], [-65.0, 71.5], [-179.999, 71.5], [-179.999, 17.625]]]}
progress completed
resource-type dataset
responsible-party [{"name": "U.S. Geological Survey, National Geospatial Technical Operations Center", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-179.999, 17.625], [-65.0, 17.625], [-65.0, 71.5], [-179.999, 71.5], [-179.999, 17.625]]]}
spatial_harvester true
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • base-map-service
  • ckan
  • geo
  • geoss
  • hydrography
  • lakes
  • national
  • national-geospatial-data-asset
  • national-hydrography-dataset
  • ngda
  • nhd
  • north-america
  • rivers
  • streams
  • the-national-map
  • united-states
  • us
  • usgs
  • water
  • water-inland-theme
isopen False
metadata_created 2025-11-22T08:02:52.900238
metadata_modified 2025-11-22T08:02:52.900242
notes ​This service is a cached overlay of a cartographic representation of the National Hydrography Dataset (NHD). ​The NHD is a comprehensive set of digital ​geo​spatial data that encodes information about naturally occurring and constructed bodies of surface water​, paths through which water flows​, ​related features​ such as stream gages and dams​​, and additional hydrologic information​. ​It is available nationwide ​in a 1:24,000-scale seamless dataset, referred to as high resolution NHD. The NHD supports many applications, such as making maps, geocoding observations, flow modeling, data maintenance and stewardship. For additional information, go to http://nhd.usgs.gov. Additional datasets are used for small-scale hydrography representation as well​, including medium resolution NHDPlus published by EPA​; USGS Small-Scale hydrography; and bathymetry from ETOPO1 Global Relief, provided by NOAA National Centers for Environmental Information, U.S. Coastal Relief Model.
num_resources 4
num_tags 22
title USGS Hydro Cached Base Map Service from The National Map