Mountains (image) NASA/Goddard Space Flight Center Share Print E-Mail Caption The snow-capped mountains of Colorado and Utah contain trillions of gallons of water stored in the form of snow. Meltwater from this snow will eventually flow into the Colorado River, delivering much needed water to seven Western states and 33 million people. Accurately predicting water from snowmelt is critical to the region, and Earth-observing satellites can help. Credit iStock Usage Restrictions This is not a NASA image; it is not in the public domain. It was purchased from istockphoto.com. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.