These areas represent known irrigation districts in Washington's Columbia Plateau region that were not available for download from this page.
https://rozaid.maps.arcgis.com/home/item.html?id=86098ae4107a43cba73cb72302f25357
This data will inform the Farmland Values/Quality EEMS model, part of the Columbia Plateau Least-Conflict Solar Siting project.
Dataset was used as a model input for the Washington Columbia Plateau Least-Conflict Solar Project.