- Poudre Straightline Diagram - Colorado Division of Water Resources, 2007
This is a GIS-based schematic diagram of all the diversions and returns or transmountain imports along the Cache la Poudre River. It also provides the amounts of decrees for the major diversions.
- South Platte GIS Data - Colorado Division of Water Resources, mostly updated in 2012
This webpage links to a variety of GIS data layers available for download, including division boundaries, aquifer boundaries, bedrock, irrigated land (and associated ditch headgates and wells, ditch service areas, and relational tables), and water-related structures.