HIFLD OPEN GIS Data Index and Crosswalk

This dataset consists of an inventory of all the HIFLD Open GIS layers that are stored in DataLumos, and a crosswalk published by the US Department of Homeland Security that links to repositories and web mapping services that contain current, updated copies of these datasets.<br><br>HIFLD Open was a GIS data portal that gathered GIS layers from dozens of US federal government agencies into one centralized source, to facilitate access to nation-wide data for many purposes, including emergency management and community preparedness. The portal was decommissioned in August of 2025. The Data Rescue Project downloaded and archived over 400 datasets that were in the portal, to create a final snapshot of the data that existed there before it was taken offline. Metadata records were captured whenever possible, and dataset titles, descriptions, and terms were carried over from the original HIFLD Open records.<br><br>The data index was created from the original JSON index file that was associated with the HIFLD Open repository, and contains the file names, titles, dates, descriptions, and key terms associated with each data layer. The Data Rescue Project used this index to create all of the records in DataLumos and to track the progress of the archiving project. Additional fields include file sizes, available formats (file geodatabase, geoJSON, geopackage, and shapefiles), a standardized publisher field, and a link to the final DataLumos record. The archiving project was completed in December 2025.<br><br>The crosswalk was created by the Department of Homeland Security in August 2025, to link individual data layers previously stored in the repository to the websites, repositories, or web mapping services of the federal agencies that originally created each dataset. Users can follow these links to identify and access updated versions of each of the layers.