The diagram below shows the core themes, or main categories of GIS data. Each of the themes is associated with a Technical Working Group (TWG) that defines which authoritative datasets within a theme should be included in The Idaho Map. Currently most, but not all, TWGs are active and are led and attended by a diverse group of GIS professionals. Click on the name of the theme or choose the theme from the drop-down menu to learn more. Note that the “People” data framework theme has not been officially established yet.