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GIS Data Resources for RoadRunner

Importing GIS Data in RoadRunner

After you obtain geographic information systems (GIS) data, the process for importing the data into RoadRunner is the same as importing any other data, regardless of where the data was obtained.

RoadRunner supports a multitude of different formats. Refer to the documentation for lists of supported formats for each type of GIS data. The most common file formats are:

  • Raster data (satellite imagery and elevation), such as GeoTIFF and JPEG 2000

  • Lidar data, such as LAZ and LAS

USGS

The U.S. Geological Survey (USGS) provides freely available GIS data[1] for much of the United States. Coverage and quality varies depending on the data type and location.

The table shows USGS interfaces from which you can access GIS data.

Interface LinkInterface Description
https://viewer.nationalmap.gov/basic/Basic National Map explorer interface (preferred)
https://viewer.nationalmap.gov/advanced-viewer/Advanced National Map explorer interface
https://earthexplorer.usgs.gov/Earth Explorer interface

Each interface has a different user interface (UI) for selecting locations and data sets, and the different interfaces can contain different data sets. When finding data for a specific project, checking all the USGS interfaces is recommended.

For example, to download data from the Basic National Map explorer interface:

  1. Find your area of interest by using the interface on the right.

  2. Select one or more data sources on the left. The "Show Availability" links display the coverage of a given data source.

    • For elevation data, select "Elevation Products" (a 1/9 arc-second is recommended, but that option is not available in all locations).

    • For lidar data, select "Elevation Source Data" (lidar point cloud (LPC) option).

    • For imagery data, select "Imagery - NAIP Plus."

  3. Click "Find Products", and then click the "results" links to view the download links.

  4. Use the download links to obtain data. Some data might require downloading multiple tiles to cover your area of interest.


[1] Credit: U.S. Geological Survey