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Are depression contours identified in 3D Elevation Program (3DEP) contour products?

Yes, depression contours are identified with tick marks in 3D Elevation Program products, but only in large scale contours (1:36,000 scale to 1:18,000 scale).

Related Content

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Improved Topo Base map of the Glacier Peak WA area

At what scales are contours visible in The National Map Viewer?

In the default base map for The National Map Advanced Viewer: 500-foot contours are visible at a scale of 1:578,000 (zoom level 10) 100-foot contours are visible at scales of 1:289,000-1:144,000 (zoom level 11-12) 50-foot contours are visible at a scale of 1:72,000 (zoom level 13) Large scale contours are visible at scales from 1:36,000-1:9,000 (zoom levels 14-16)

link

At what scales are contours visible in The National Map Viewer?

In the default base map for The National Map Advanced Viewer: 500-foot contours are visible at a scale of 1:578,000 (zoom level 10) 100-foot contours are visible at scales of 1:289,000-1:144,000 (zoom level 11-12) 50-foot contours are visible at a scale of 1:72,000 (zoom level 13) Large scale contours are visible at scales from 1:36,000-1:9,000 (zoom levels 14-16)

Learn More
link
Alaska Topographic Map Contours on Glacier

What are the projection, horizontal and vertical datum, format, and distributed tile extent of 3D Elevation Program (3DEP) contours?

Contours are not projected, but are provided in geographic coordinates (latitude and longitude) in units of decimal degrees, and horizontally referenced to the North American Datum of 1983. Contour elevation values are vertically referenced to the North American Vertical Datum of 1988. Contours are staged in Esri File Geodatabase 10.1 or Shapefile format, and distributed in 1x1 degree tiles.

link

What are the projection, horizontal and vertical datum, format, and distributed tile extent of 3D Elevation Program (3DEP) contours?

Contours are not projected, but are provided in geographic coordinates (latitude and longitude) in units of decimal degrees, and horizontally referenced to the North American Datum of 1983. Contour elevation values are vertically referenced to the North American Vertical Datum of 1988. Contours are staged in Esri File Geodatabase 10.1 or Shapefile format, and distributed in 1x1 degree tiles.

Learn More
link
video thumbnail: Elevation link

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
Authors
By
National Geospatial Program, 3D Elevation Program, The National Map - Data Delivery

The 3D Elevation Program—Supporting California's Economy

IntroductionCalifornia faces unprecedented challenges presented by shifting weather patterns that are defining a “new normal.” The result has been extreme weather events, prolonged drought, flooding, and debris flows. These conditions drive severe tree mortality, increase wildfire occurrence and intensity, reduce water availability, and hasten subsidence in groundwater basins. Collectively, these
Authors
Carol L. Ostergren, Drew Decker, William J. Carswell,
By
Core Science Systems Mission Area, National Geospatial Program, 3D Elevation Program

Comparing methods used by the U.S. Geological Survey Coastal and Marine Geology Program for deriving shoreline position from lidar data

The U.S. Geological Survey Coastal and Marine Geology Program uses three methods to derive a datum-based, mean high water shoreline on open-ocean coasts from light detection and ranging (lidar) elevation surveys. This work compared the shorelines produced by the three methods for two different surveys: one survey with simple beach morphology, and one survey with complex beach morphology. For the s
Authors
Amy S. Farris, Kathryn M. Weber, Kara S. Doran, Jeffrey H. List
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

The 3D Elevation Program—Flood risk management

Flood-damage reduction in the United States has been a longstanding but elusive societal goal. The national strategy for reducing flood damage has shifted over recent decades from a focus on construction of flood-control dams and levee systems to a three-pronged strategy to (1) improve the design and operation of such structures, (2) provide more accurate and accessible flood forecasting, and (3)
Authors
William J. Carswell,, Vicki Lukas
By
Groundwater and Streamflow Information Program, National Geospatial Program, 3D Elevation Program
link

USGS Topo Base Map Refreshed and Other Updates

The “USGS Topo Base Map” service named “USGS Topo” has been refreshed with new data and design changes. In addition, several of the “Data Availability...

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
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Maps Made with Light Show the Way

The topic, officially, was water. But during a scientific conference in Butte, Montana, in 2013, earthquake expert Michael Stickney glimpsed something...

Read Article

Related Content

  • FAQ
    link
    Improved Topo Base map of the Glacier Peak WA area

    At what scales are contours visible in The National Map Viewer?

    In the default base map for The National Map Advanced Viewer: 500-foot contours are visible at a scale of 1:578,000 (zoom level 10) 100-foot contours are visible at scales of 1:289,000-1:144,000 (zoom level 11-12) 50-foot contours are visible at a scale of 1:72,000 (zoom level 13) Large scale contours are visible at scales from 1:36,000-1:9,000 (zoom levels 14-16)

    link

    At what scales are contours visible in The National Map Viewer?

    In the default base map for The National Map Advanced Viewer: 500-foot contours are visible at a scale of 1:578,000 (zoom level 10) 100-foot contours are visible at scales of 1:289,000-1:144,000 (zoom level 11-12) 50-foot contours are visible at a scale of 1:72,000 (zoom level 13) Large scale contours are visible at scales from 1:36,000-1:9,000 (zoom levels 14-16)

    Learn More
    link
    Alaska Topographic Map Contours on Glacier

    What are the projection, horizontal and vertical datum, format, and distributed tile extent of 3D Elevation Program (3DEP) contours?

    Contours are not projected, but are provided in geographic coordinates (latitude and longitude) in units of decimal degrees, and horizontally referenced to the North American Datum of 1983. Contour elevation values are vertically referenced to the North American Vertical Datum of 1988. Contours are staged in Esri File Geodatabase 10.1 or Shapefile format, and distributed in 1x1 degree tiles.

    link

    What are the projection, horizontal and vertical datum, format, and distributed tile extent of 3D Elevation Program (3DEP) contours?

    Contours are not projected, but are provided in geographic coordinates (latitude and longitude) in units of decimal degrees, and horizontally referenced to the North American Datum of 1983. Contour elevation values are vertically referenced to the North American Vertical Datum of 1988. Contours are staged in Esri File Geodatabase 10.1 or Shapefile format, and distributed in 1x1 degree tiles.

    Learn More
  • Multimedia
    link
    video thumbnail: Elevation link
  • 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
    Authors
    By
    National Geospatial Program, 3D Elevation Program, The National Map - Data Delivery

    The 3D Elevation Program—Supporting California's Economy

    IntroductionCalifornia faces unprecedented challenges presented by shifting weather patterns that are defining a “new normal.” The result has been extreme weather events, prolonged drought, flooding, and debris flows. These conditions drive severe tree mortality, increase wildfire occurrence and intensity, reduce water availability, and hasten subsidence in groundwater basins. Collectively, these
    Authors
    Carol L. Ostergren, Drew Decker, William J. Carswell,
    By
    Core Science Systems Mission Area, National Geospatial Program, 3D Elevation Program

    Comparing methods used by the U.S. Geological Survey Coastal and Marine Geology Program for deriving shoreline position from lidar data

    The U.S. Geological Survey Coastal and Marine Geology Program uses three methods to derive a datum-based, mean high water shoreline on open-ocean coasts from light detection and ranging (lidar) elevation surveys. This work compared the shorelines produced by the three methods for two different surveys: one survey with simple beach morphology, and one survey with complex beach morphology. For the s
    Authors
    Amy S. Farris, Kathryn M. Weber, Kara S. Doran, Jeffrey H. List
    By
    Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

    The 3D Elevation Program—Flood risk management

    Flood-damage reduction in the United States has been a longstanding but elusive societal goal. The national strategy for reducing flood damage has shifted over recent decades from a focus on construction of flood-control dams and levee systems to a three-pronged strategy to (1) improve the design and operation of such structures, (2) provide more accurate and accessible flood forecasting, and (3)
    Authors
    William J. Carswell,, Vicki Lukas
    By
    Groundwater and Streamflow Information Program, National Geospatial Program, 3D Elevation Program
  • News
    link

    USGS Topo Base Map Refreshed and Other Updates

    The “USGS Topo Base Map” service named “USGS Topo” has been refreshed with new data and design changes. In addition, several of the “Data Availability...

    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

    Maps Made with Light Show the Way

    The topic, officially, was water. But during a scientific conference in Butte, Montana, in 2013, earthquake expert Michael Stickney glimpsed something...

    Read Article