Skip to main content

Do you have examples of using TNM services in other applications?

Visit our API Examples Demos Web page for TNM services being used in other Application Program Interfaces (APIs), such as Leaflet, OpenLayers 2, Google Earth, and OpenLayers 3 Mobile. Other examples include usage of the Elevation Point Query Service (EPQS) and an Arctic Spatial Data Infrastructure (SDI) viewer.

Related Content

link
Screen shot of streams near the Dillon Reservoir, Frisco, CO on imagery basemap

Where can I find a list of URLs for The National Map services?

A complete list of service URLs can be found at The National Map Services, which contains available REST, WMS, WMTS (cached base maps only), WFS, WCS, and other service links.Learn more:Training videos for The National Map Products and ServicesThe National Map Applications

link

Where can I find a list of URLs for The National Map services?

A complete list of service URLs can be found at The National Map Services, which contains available REST, WMS, WMTS (cached base maps only), WFS, WCS, and other service links.Learn more:Training videos for The National Map Products and ServicesThe National Map Applications

Learn More
link
Mercator the Man

What map projections are used in The National Map tiled base map services and dynamic overlay services?

The projection used for all tiled base map services in The National Map is the World Geodetic System 1984 (WGS 84) Web Mercator (Auxiliary Sphere) so that base map services can be used in combination with other common viewers. See Spatial Reference SR-ORG:6928 and Spatial Reference SR-ORG:7483.Dynamic overlay services are in WGS84 (see Spatial Reference EPSG:4326) but can be reprojected as needed...

link

What map projections are used in The National Map tiled base map services and dynamic overlay services?

The projection used for all tiled base map services in The National Map is the World Geodetic System 1984 (WGS 84) Web Mercator (Auxiliary Sphere) so that base map services can be used in combination with other common viewers. See Spatial Reference SR-ORG:6928 and Spatial Reference SR-ORG:7483.Dynamic overlay services are in WGS84 (see Spatial Reference EPSG:4326) but can be reprojected as needed...

Learn More
link
Updated 2015 version of Tupelo, Mississippi US Topo quadrangle with orthoimage turned on

How often are The National Map's composite base maps and dynamic service overlays updated?

Composite base maps are recached about once a year. Although data in dynamic service overlays are ideally updated quarterly, it can sometimes take up to six months. Please note that there will be times when composite base maps and dynamic service overlays are not in synchronization because of a difference in refresh cycles.Subscribe to the National Map Simple Notifcation Service (SNS) to stay in...

link

How often are The National Map's composite base maps and dynamic service overlays updated?

Composite base maps are recached about once a year. Although data in dynamic service overlays are ideally updated quarterly, it can sometimes take up to six months. Please note that there will be times when composite base maps and dynamic service overlays are not in synchronization because of a difference in refresh cycles.Subscribe to the National Map Simple Notifcation Service (SNS) to stay in...

Learn More
link
AK Mount McKinley A-3 US Topo (Browse Image for Story Map)

What is the difference between tiled and dynamic services?

A tiled service contains cached tiles that render the map in small tile images. This allows the map to perform much faster when panning and zooming, compared to a dynamic service.Dynamic is considered an "older" way of displaying web maps, where each feature is called from the source data and drawn separately for every pan and zoom. Tiled base maps are cached from global scale to a scale of 1:9...

link

What is the difference between tiled and dynamic services?

A tiled service contains cached tiles that render the map in small tile images. This allows the map to perform much faster when panning and zooming, compared to a dynamic service.Dynamic is considered an "older" way of displaying web maps, where each feature is called from the source data and drawn separately for every pan and zoom. Tiled base maps are cached from global scale to a scale of 1:9...

Learn More
link
Chesapeake Bay 2014 Landsat imagery

What are the base map services (or URLs) used in The National Map?

The National Map Services offers a series of composite base maps that combine layers into tile cache services with the cartographic richness of multiple data sources. The following base maps are available:USGS Topo - combines the most current data (boundaries, geographic names, transportation, elevation, hydrography, land cover, and other themes) that make up The National Map. Contours generated...

link

What are the base map services (or URLs) used in The National Map?

The National Map Services offers a series of composite base maps that combine layers into tile cache services with the cartographic richness of multiple data sources. The following base maps are available:USGS Topo - combines the most current data (boundaries, geographic names, transportation, elevation, hydrography, land cover, and other themes) that make up The National Map. Contours generated...

Learn More
link
Image showing the main page of the Delavan Lake Monitoring Map tool

How can I submit a question or report issues regarding The National Map products and services?

Submit questions or report issues to The National Map service desk at: tnm_help@usgs.gov

link

How can I submit a question or report issues regarding The National Map products and services?

Submit questions or report issues to The National Map service desk at: tnm_help@usgs.gov

Learn More
link
Image: Aerial View of Roadbed Collapse

Where can I get metadata for The National Map products and services?

Metadata for The National Map products and services is available through the following sources:In The National Map Viewer, click on the "Layer List" icon above the map, then click on the three dots to the right of the layer and select "Description" in the dropdown menu. Most layers in the Viewer are also available as Downloads and/or Services. Product-level metadata is included with data...

link

Where can I get metadata for The National Map products and services?

Metadata for The National Map products and services is available through the following sources:In The National Map Viewer, click on the "Layer List" icon above the map, then click on the three dots to the right of the layer and select "Description" in the dropdown menu. Most layers in the Viewer are also available as Downloads and/or Services. Product-level metadata is included with data...

Learn More

The National Map—New data delivery homepage, advanced viewer, lidar visualization

As one of the cornerstones of the U.S. Geological Survey’s (USGS) National Geospatial Program, The National Map is a collaborative effort among the USGS and other Federal, State, and local partners to improve and deliver topographic information for the Nation. The National Map is featuring direct links to new and improved GIS data access utilities on a refreshed data delivery homepage at https://w
By
National Geospatial Program, 3D Elevation Program, The National Map - Data Delivery
link

USGS Digital Elevation Models (DEM) Switching to New Distribution Format

In support of ongoing efforts to provide efficient, cloud ready, open data formats, the U.S. Geological Survey National Geospatial Program is...

Read Article
link

New Elevation Map Service Available From the USGS 3D Elevation Program

The USGS 3D Elevation Program (3DEP) announces the availability of a new dynamic map service.

Read Article
link

Keeping Current with Map Services Made Easier

The National Map provides a new Simple Notification Service and has new URLs for some of its thematic cartographic map services.

Read Article

Related Content

  • FAQ
    link
    Screen shot of streams near the Dillon Reservoir, Frisco, CO on imagery basemap

    Where can I find a list of URLs for The National Map services?

    A complete list of service URLs can be found at The National Map Services, which contains available REST, WMS, WMTS (cached base maps only), WFS, WCS, and other service links.Learn more:Training videos for The National Map Products and ServicesThe National Map Applications

    link

    Where can I find a list of URLs for The National Map services?

    A complete list of service URLs can be found at The National Map Services, which contains available REST, WMS, WMTS (cached base maps only), WFS, WCS, and other service links.Learn more:Training videos for The National Map Products and ServicesThe National Map Applications

    Learn More
    link
    Mercator the Man

    What map projections are used in The National Map tiled base map services and dynamic overlay services?

    The projection used for all tiled base map services in The National Map is the World Geodetic System 1984 (WGS 84) Web Mercator (Auxiliary Sphere) so that base map services can be used in combination with other common viewers. See Spatial Reference SR-ORG:6928 and Spatial Reference SR-ORG:7483.Dynamic overlay services are in WGS84 (see Spatial Reference EPSG:4326) but can be reprojected as needed...

    link

    What map projections are used in The National Map tiled base map services and dynamic overlay services?

    The projection used for all tiled base map services in The National Map is the World Geodetic System 1984 (WGS 84) Web Mercator (Auxiliary Sphere) so that base map services can be used in combination with other common viewers. See Spatial Reference SR-ORG:6928 and Spatial Reference SR-ORG:7483.Dynamic overlay services are in WGS84 (see Spatial Reference EPSG:4326) but can be reprojected as needed...

    Learn More
    link
    Updated 2015 version of Tupelo, Mississippi US Topo quadrangle with orthoimage turned on

    How often are The National Map's composite base maps and dynamic service overlays updated?

    Composite base maps are recached about once a year. Although data in dynamic service overlays are ideally updated quarterly, it can sometimes take up to six months. Please note that there will be times when composite base maps and dynamic service overlays are not in synchronization because of a difference in refresh cycles.Subscribe to the National Map Simple Notifcation Service (SNS) to stay in...

    link

    How often are The National Map's composite base maps and dynamic service overlays updated?

    Composite base maps are recached about once a year. Although data in dynamic service overlays are ideally updated quarterly, it can sometimes take up to six months. Please note that there will be times when composite base maps and dynamic service overlays are not in synchronization because of a difference in refresh cycles.Subscribe to the National Map Simple Notifcation Service (SNS) to stay in...

    Learn More
    link
    AK Mount McKinley A-3 US Topo (Browse Image for Story Map)

    What is the difference between tiled and dynamic services?

    A tiled service contains cached tiles that render the map in small tile images. This allows the map to perform much faster when panning and zooming, compared to a dynamic service.Dynamic is considered an "older" way of displaying web maps, where each feature is called from the source data and drawn separately for every pan and zoom. Tiled base maps are cached from global scale to a scale of 1:9...

    link

    What is the difference between tiled and dynamic services?

    A tiled service contains cached tiles that render the map in small tile images. This allows the map to perform much faster when panning and zooming, compared to a dynamic service.Dynamic is considered an "older" way of displaying web maps, where each feature is called from the source data and drawn separately for every pan and zoom. Tiled base maps are cached from global scale to a scale of 1:9...

    Learn More
    link
    Chesapeake Bay 2014 Landsat imagery

    What are the base map services (or URLs) used in The National Map?

    The National Map Services offers a series of composite base maps that combine layers into tile cache services with the cartographic richness of multiple data sources. The following base maps are available:USGS Topo - combines the most current data (boundaries, geographic names, transportation, elevation, hydrography, land cover, and other themes) that make up The National Map. Contours generated...

    link

    What are the base map services (or URLs) used in The National Map?

    The National Map Services offers a series of composite base maps that combine layers into tile cache services with the cartographic richness of multiple data sources. The following base maps are available:USGS Topo - combines the most current data (boundaries, geographic names, transportation, elevation, hydrography, land cover, and other themes) that make up The National Map. Contours generated...

    Learn More
    link
    Image showing the main page of the Delavan Lake Monitoring Map tool

    How can I submit a question or report issues regarding The National Map products and services?

    Submit questions or report issues to The National Map service desk at: tnm_help@usgs.gov

    link

    How can I submit a question or report issues regarding The National Map products and services?

    Submit questions or report issues to The National Map service desk at: tnm_help@usgs.gov

    Learn More
    link
    Image: Aerial View of Roadbed Collapse

    Where can I get metadata for The National Map products and services?

    Metadata for The National Map products and services is available through the following sources:In The National Map Viewer, click on the "Layer List" icon above the map, then click on the three dots to the right of the layer and select "Description" in the dropdown menu. Most layers in the Viewer are also available as Downloads and/or Services. Product-level metadata is included with data...

    link

    Where can I get metadata for The National Map products and services?

    Metadata for The National Map products and services is available through the following sources:In The National Map Viewer, click on the "Layer List" icon above the map, then click on the three dots to the right of the layer and select "Description" in the dropdown menu. Most layers in the Viewer are also available as Downloads and/or Services. Product-level metadata is included with data...

    Learn More
  • Publications

    The National Map—New data delivery homepage, advanced viewer, lidar visualization

    As one of the cornerstones of the U.S. Geological Survey’s (USGS) National Geospatial Program, The National Map is a collaborative effort among the USGS and other Federal, State, and local partners to improve and deliver topographic information for the Nation. The National Map is featuring direct links to new and improved GIS data access utilities on a refreshed data delivery homepage at https://w
    By
    National Geospatial Program, 3D Elevation Program, The National Map - Data Delivery
  • News
    link

    USGS Digital Elevation Models (DEM) Switching to New Distribution Format

    In support of ongoing efforts to provide efficient, cloud ready, open data formats, the U.S. Geological Survey National Geospatial Program is...

    Read Article
    link

    New Elevation Map Service Available From the USGS 3D Elevation Program

    The USGS 3D Elevation Program (3DEP) announces the availability of a new dynamic map service.

    Read Article
    link

    Keeping Current with Map Services Made Easier

    The National Map provides a new Simple Notification Service and has new URLs for some of its thematic cartographic map services.

    Read Article