Skip to main content
Advanced Search

Filters: Tags: Hydrography (X) > Extensions: ArcGIS REST Service (X)

7 results (60ms)   

View Results as: JSON ATOM CSV
thumbnail
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...
This map service contains GIS data in NAD83 from the EPA Office of Water for the National Hydrography Dataset (NHD) integrated with reach-related information from the USEPA Reach File Version 3.0-Alpha release (RF3-Alpha). This service also includes hydrographic landmark features in NHD. It is available as a WMS, WFS and REST service as well as the native MapServer service. Details include symbology based on the NHD symbol set and labels for flowlines and waterbodies.
Tags: Hydrography
thumbnail
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,...
thumbnail
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...
thumbnail
This map service contains GIS data in Web Mercator from the EPA Office of Water for the National Hydrography Dataset (NHD) integrated with reach-related information from the USEPA Reach File Version 3.0-Alpha release (RF3-Alpha). This service also includes hydrographic landmark features in NHD. It is available as a WMS, KML, and REST service as well as the native MapServer service.
thumbnail
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 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),...
The U.S. Fish and Wildlife Service (Service) is the principal Federal agency that provides information to the public on the extent and status of the Nation's wetlands. The National Wetlands Inventory has extensive mapping expertise and knowledge involving wetland identification and classification, image interpretation, and digital data capabilities. Reflecting this expertise, the NWI is regularly asked to provide resource mapping guidance, and with increasing frequency, is requested to map riparian areas of the western United States. The goal of the National Wetla The U.S. Fish and Wildlife Service (Service) is the principal Federal agency that provides information to the public on the extent and status of the...


    map background search result map search result map Riparian Habitats of the Western United States - Web Services Environmental Protection Agency (EPA) USA Hydrography National Hydrography Dataset (NHD) - 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 Riparian Habitats of the Western United States - Web Services National Hydrography Dataset (NHD) - 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 Environmental Protection Agency (EPA) USA Hydrography