Filters: Tags: {"scheme":"The National Map Theme Thesaurus"} (X) > Types: Citation (X) > Extensions: ArcGIS REST Service (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types ArcGIS REST Map Service (1) Map Service (1) Contacts U.S. Geological Survey U.S. Geological Survey, National Geospatial Technical Operations Center USGS - National Geospatial Technical Operations Center (NGTOC) Categories Data (1) Tag Types Theme (1) Tags (with Scheme=The National Map Theme Thesaurus) elevation (1) View Results as: JSON ATOM CSV

USGS Elevation Contours Overlay Map Service from The National Map 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... Categories: Data; Types: ArcGIS REST Map Service, Citation, Map Service; Tags: Elevation, Elevation, NGP-TNM, Overlay Map Service, REST, All tags... US, United States, WMS, a-16, altitude, contour, elevation, elevation, ngda, ngda, relief, terrain, topographic, topography, Fewer tags