The Yampa River Water Resources Planning Model Yampa Model was developed jointly by the Colorado Water Conservation Board and the Division of Water Resources as part of the Colorado River Decision Support System (CRDSS). The objective was to develop a monthly water allocation and accounting model which includes 100 percent of the basins consumptive use and would be capable of making comparative analyses for the assessment of historical and future...

This report documents the geologic investigations conducted by the Colorado Geological Survey in the Purgatoire River watershed of the Raton Basin of Las Animas County, Colorado. The purpose of this geologic investigation was to provide additional information on the stratigraphic and structural relationships of the coal-bearing formations in the Purgatoire River watershed to assist in the protection and management of both the mineral and water resources...

This report is a synthesis of climate science relevant for management and planning for Colorado's water resources. It focuses on observed climate trends, climate modeling, and projections of temperature, precipitation, snowpack, and streamflow. Climate projections are reported for the mid-21st century because this time frame is the focus of adaptation strategies being developed by the State of Colorado and other water entities.

Database can be searched by Instream flow information subdivided by County, water division, case number, stream name, watershed; or Natural lake information by county, water division, case number, lake name and water shed.

This reports summarizes work and key findings to date from the Upper RIO Grande Basin SNOwfall Measurement and streamFLOW (RIO-SNO-FLOW) Forecasting Improvement Project conducted from Jan. 1, 2014 through Dec. 31, 2015. The project area was centered over the upper mainstem Rio Grande and Conejos River basins in southern Colorado.