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The USGS Governmental Unit Boundaries service from The National Map (TNM) represents major civil areas for the Nation, including States or Territories, counties (or equivalents), Federal and Native American areas, congressional districts, minor civil divisions, incorporated places (such as cities and towns), and unincorporated places. Boundaries data are useful for understanding the extent of jurisdictional or administrative areas for a wide range of applications, including mapping or managing resources, and responding to natural disasters. Boundaries data also include extents of forest, grassland, park, wilderness, wildlife, and other reserve areas useful for recreational activities, such as hiking and backpacking....
Types: Citation;
Tags: Boundaries,
NGP-TNM,
Overlay Map Service,
REST,
US, All tags...
United States,
WFS,
WMS,
administrative,
borough,
boundaries,
boundary,
city,
city and borough,
congressional district,
county,
federal,
gazetteer,
government,
governmental unit,
incorporated place,
minor civil division,
municipal,
municipio,
native american area,
parish,
reserve,
state,
statistical,
territory,
town,
unincorporated place,
village, Fewer tags
USGS Imagery Topo is a topographic tile cache base map with orthoimagery as a backdrop, and combines the most current data (Boundaries, Names, Transportation, Elevation, Hydrography, and other themes) that make up The National Map. Contours generated for the US Topo product are included and are visible along with other data to the 1:18,000 zoom scale. This product is designed to provide a seamless view of the data, closely resembling The National Map's US Topo (GeoPDF) product at large scales, in a GIS accessible format. Orthoimagery data are typically high resolution aerial images that combine the visual attributes of an aerial photograph with the spatial accuracy and reliability of a map. Digital orthoimage resolution...
Types: Citation;
Tags: Base Map Service,
Boundaries,
Elevation,
Geographic Names,
Hydrography, All tags...
Land Cover,
Orthoimagery,
Structures,
Transportation,
US,
United States,
boundaries,
elevation,
imageryBaseMapsEarthCover,
inlandWaters,
structure,
transportation, Fewer tags
The USGS Map Indices service from The National Map (TNM) consists of 1x1 Degree, 30x60 Minute (100K), 15 Minute (63K), 7.5 Minute (24K), and 3.75 Minute grid polygons used in The National Map viewer for reference and to download data. At 1:24,000-scale (24K), the standard map size is 7.5 minutes of latitude by 7.5 minutes of longitude. At 1:100,000-scale (100K), the standard map size is 30 minutes of latitude by 60 minutes of longitude. The National Map viewer allows free download of public domain USGS map indices data in Esri File Geodatabase format.
Types: Citation;
Tags: 100K,
15 minute,
1:100,000,
1:24,000,
1:62,500, All tags...
1x1 degree,
24K,
3.75 minute,
30x60 minute,
63K,
7.5 minute,
Boundaries,
NGP-TNM,
Overlay Map Service,
REST,
US,
United States,
WMS,
grid,
imageryBaseMapsEarthCover,
index,
indices,
map,
reference, Fewer tags
USGS Hydro-NHD is a tile cache base map that combines hydrography data in The National Map from the National Hydrography Dataset (NHD) along with the Watershed Boundary Dataset (WBD). The NHD 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...
Types: Citation;
Tags: Base Map Service,
Boundaries,
Elevation,
Geographic Names,
Hydrography, All tags...
Lakes,
NGDA,
NHD,
National Geospatial Data Asset,
National Hydrography Dataset,
Rivers,
Streams,
The National Map,
US,
USGS,
United States,
WBD,
Water,
Water Inland Theme,
Watershed Boundary Dataset,
boundaries,
elevation,
imageryBaseMapsEarthCover,
inlandWaters, Fewer tags
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