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USGS Elevation Contours Overlay Map Service from The National Map

Metadata Updated: November 11, 2023

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 Elevation Program (3DEP) provides elevation data for The National Map and basic elevation information for earth science studies and mapping applications. Scientists and resource managers use elevation data for global change research, hydrologic modeling, resource monitoring, mapping and visualization, and many other applications. For additional information on 3DEP, go to https://nationalmap.gov/3DEP/.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date September 5, 2018
Metadata Created Date November 11, 2023
Metadata Updated Date November 11, 2023
Reference Date(s) January 1, 2017 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from USGS Theme Overlay Map Services from The National Map

Additional Metadata

Resource Type Dataset
Metadata Date September 5, 2018
Metadata Created Date November 11, 2023
Metadata Updated Date November 11, 2023
Reference Date(s) January 1, 2017 (publication)
Responsible Party U.S. Geological Survey, National Geospatial Technical Operations Center (Point of Contact)
Contact Email
Guid 3b0177f4-8098-4c49-b67f-516b6a974238_source
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 180
Bbox North Lat 71.5
Bbox South Lat 17.625
Bbox West Long -179.1666667
Coupled Resource
Frequency Of Update asNeeded
Harvest Object Id 3b0177f4-8098-4c49-b67f-516b6a974238
Harvest Source Id 019b3a32-16f6-4dfa-bbdc-674b26e37b99
Harvest Source Title USGS Theme Overlay Map Services from The National Map
Licence Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a U.S. Geological Survey server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Lineage
Metadata Language eng; USA
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-179.1666667, 17.625], [180.0, 17.625], [180.0, 71.5], [-179.1666667, 71.5], [-179.1666667, 17.625]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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