IRIS data (*.dat)
Iowa Rivers Information System (IRIS) uses a variety of geospatial data layers to provide information about Iowa's rivers and streams.
Compatibility:
- Cadcorp SIS Desktop
 - Cadcorp SIS Desktop Express
 - Cadcorp SIS ActiveX Modeller
 - Cadcorp SIS ActiveX Manager
 - Cadcorp SIS ActiveX Viewer
 - Cadcorp GeognoSIS
 
