The ArkTex Council of Governments (ATCOG) provides GIS mapping services for the nine (9) counties located within the ATCOG region. Below are some of the maps provided by ATCOG GIS for Delta County.
Interactive maps are available at the following links:
https://delta-cad.org/interactive-map/
https://open-data-portal-atcog.hub.arcgis.com/