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Filters: Tags: a-16 (X) > Extensions: ArcGIS REST Service (X)

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The Watershed Boundary Dataset (WBD) from The National Map (TNM) defines the perimeter of drainage areas formed by the terrain and other landscape characteristics. The drainage areas are nested within each other so that a large drainage area, such as the Upper Mississippi River, will be composed of multiple smaller drainage areas, such as the Wisconsin River. Each of these smaller areas can further be subdivided into smaller and smaller drainage areas. The WBD uses six different levels in this hierarchy, with the smallest averaging about 30,000 acres. The WBD is made up of polygons nested into six levels of data respectively defined by Regions, Subregions, Basins, Subbasins, Watersheds, and Subwatersheds. For additional...
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This service time enables a series of world maps for the extended period 1901-2100 to depict global trends in observed climate and projected climate change scenarios. These world maps were downloaded from the Institute for Veterinary Public Health's website here. This updated world map of Köppen-Geiger climate classification was based on temperature and precipitation observations for the This service time enables a series of world maps for the extended period 1901-2100 to depict global trends in observed climate and projected climate change scenarios. These world maps were downloaded from the Institute for Veterinary Public Health's website here. This updated world map of Köppen-Geiger...
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USGS developed The National Map (TNM) Gazetteer as the Federal and national standard (ANSI INCITS 446-2008) for geographic nomenclature based on the Geographic Names Information System (GNIS). The National Map Gazetteer contains information about physical and cultural geographic features, geographic areas, and locational entities that are generally recognizable and locatable by name (have achieved some landmark status) and are of interest to any level of government or to the public for any purpose that would lead to the representation of the feature in printed or electronic maps and/or geographic information systems. The dataset includes features of all types in the United States, its associated areas, and Antarctica,...
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The USGS Elevation Contours service from The National Map (TNM) consists of contours generated for the conterminous United States from 1- and 1/3 arc-second elevation data. Small scale contours derived from 1 arc-second data are displayed at scales ranging from 1:577K to 1:72K in The National Map viewer. Contour intervals are 100 foot between 1:577K and 1:144K, and 50 foot at 1:72K. Large scale contours derived from 1/3 arc-second data are displayed at 1:50K (and larger). Large scale contour intervals are variable across the United States depending on complexity of topography. The National Map viewer allows free downloads of public domain contour data in either Esri File Geodatabase or Shapefile formats. The 3D...
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The USGS National Hydrography Dataset (NHD) service from The National Map (TNM) 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...


    map background search result map search result map USGS Elevation Contours Overlay Map Service from The National Map USGS Hydrography (NHD) Overlay Map Service from The National Map USGS Watershed Boundary Dataset (WBD) Overlay Map Service from The National Map USGS Elevation Contours Overlay Map Service from The National Map USGS Hydrography (NHD) Overlay Map Service from The National Map USGS Watershed Boundary Dataset (WBD) Overlay Map Service from The National Map