GIS Data By Category

Where applicable, data is provided in ArcGIS geodatabases. All other data is downloadable as zipped shapefiles.

Boundary shapefiles for divisions, districts and groundwater management areas.

Title/Description File Type Last Updated
Division Boundaries Zipped Shapefile 2/1/2010
District Boundaries Zipped Shapefile 3/30/2016
Major River Basin Boundaries Zipped Shapefile 2/9/2011
Basin Roundtable Boundaries Zipped Shapefile 3/26/2014
Groundwater Management Districts Zipped Shapefile 9/1/1996
Designated Basins Zipped Shapefile 9/1/1996
Produced Water Non Tributary Boundaries Geodatabase
(10.1 File GDB)

Statewide climate isohyet shapefiles.

Title/Description File Type Last Updated
Average Evaporation - Free Water (1956-1970) Zipped Shapefile 1982
Average Precipitation (1951-1980) Zipped Shapefile 1993
Solar Radiation Zipped Shapefile 1992


HydroBase Point Data
HydroBase Data shapefiles include climate station, structures, surface water and well data. All shapefiles are in statewide coverages. These datasets are updated nightly.

Title/Description File Type
Climate Data - climate, evaporation, temperature, precipitation & solar radiation stations Zipped Shapefile
Structures - with water rights Zipped Shapefile
Structure Features - points of interest, measuring locations, recharge areas, well fields, etc. Zipped Shapefile
Surface Water Gages - Real Time (current conditions) Zipped Shapefile
Surface Water Gages - Historic (with Period of Record) Zipped Shapefile
Well Applications Zipped Shapefile
Well Geophysical Logs Zipped Shapefile
Wells with Water Levels Zipped Shapefile
Final Permits - Designated Basins Zipped Shapefile

Groundwater data includes aquifer contours and properties, well data, and other groundwater point and raster/grid data. Geodatabases are 9.2 ArcGIS personal geodatabases.

Title/Description File Type Last Updated
Statewide Bedrock Aquifers Zipped Shapefile 6/18/2014
Statewide Alluvial Aquifers Zipped Shapefile 6/18/2014
Denver Basin Bedrock Data Geodatabase 2006
>South Platte Alluvial Data Geodatabase 2006
Division 1 Aquifer Grids Raster 2009


Irrigated Lands
Irrigated Lands geodatabases provide irrigated land coverages, associated ditch headgates and wells, and relational tables for the years listed below. Zipped shapefiles include irrigated lands, ditch headgates, ditch service areas, and wells, where available.

Disclaimer: Irrigated lands delineation, crop typing, and other information is provided by DNR for informational purposes only. Data is created by a combination of automated and manual processes and accuracy is not guaranteed. Use of this data as a primary source in Colorado Water Court is not recommended. See GIS metadata and Basin DSS Task Memos for more information about creation of these GIS layers. 

Title/Description File Type Last Updated
Division 1 Irrigated Lands (1956, 1976, 1987, 1997, 2001, 2005, 2010, 2015) Geodatabase, Zipped Shapefiles 11/22/2017
Division 1 - Republican Irrigated Lands (2010, 2015-2019) Geodatabase, Zipped Shapefiles 4/24/2020
Division 2 Irrigated Lands (1954, 1975, 1988, 1998, 2010, 2013-2018) Geodatabase, Zipped Shapefiles 10/22/2019
Division 3 Irrigated Lands (1936, 1998, 2002, 2005, 2009 - 2019) Geodatabase, Zipped Shapefiles 6/2/2020
Division 4 Irrigated Lands (1993, 2000, 2005, 2010, 2015) Geodatabase, Zippped Shapefiles 9/17/2019
Division 5 Irrigated Lands (1993, 2000, 2005, 2010, 2015) Geodatabase, Zippped Shapefiles 12/15/2016
Division 6 Irrigated Lands (1993, 2000, 2005, 2010, 2015) Geodatabase, Zippped Shapefiles 2/2/2017
Division 6, Dist 47 Irrigated Lands (1952, 1956, 1976, 1987, 2001, 2005, 2010-2017) Geodatabase, Zippped Shapefiles 11/6/2018
Division 7 Irrigated Lands (1993, 2000, 2005, 2010, 2015) Geodatabase, Zippped Shapefiles 11/22/2017

National Hydrography Dataset (NHD)
Please download the latest version of the NHD from the USGS. (From the lefthand menu choose "Get Data" then "pre-staged subregions" to get Colorado's data in the appropriate format.)

Source Water Route Framework
Source Water Route Framework is a dataset which includes a measured, named streams from the National Hydrography Dataset (NHD). This 10.1 File Geodatabase also includes confluence points and an associated table of stream mile locations of those confluence points. This dataset is intended to be used to calculate stream mile location of features using the ArcGIS Linear Referencing tools. See included document for additional details.

Source Water Route Framework  Zipped Geodatabase 10/11/2019

DWR Irrigation Ditches
This data set shows the delineation of irrigation ditches in Colorado. Ditches have been matched to their point of diversion and mapped to their researched extent. In some cases, the data has been photo-revised and in other cases it has not. In any case, this data set is a 2nd generation of irrigation ditch data produced by DWR/CWCB staff and in some cases produced by consultants with input from DWR staff. This data set is also incomplete and will have frequent additions as DWR/CWCB staff complete review of ditches.

Title/Description File Type Last Updated
Irrigation Ditches (Geodatabase) Zipped Geodatabase 4/14/2020
Irrigation Ditches (Shapefiles) Zipped Shapefile 4/14/2020

Instream Flow
Instream Flow data includes decreed and pending reaches and associated termini points, as well as natural lake levels.

Title/Description File Type Last Updated
Instream Flow Reaches - Decreed and pending reaches Zipped Shapefile 5/31/2019
Instream Flow Termini - Decreed and pending termini points Zipped Shapefile 5/31/2019
Natural Lake Levels - Decreed Lakes Zipped Shapefile 1/20/2015