Chimney Hollow Reservoir Project | Northern Water
https://www.northernwater.org/deliver-water/plan-for-the-future/chimney-hollow-reservoir-projectNorthern Colorado Water Conservancy District - Wikipedia
https://en.wikipedia.org/wiki/Northern_Colorado_Water_Conservancy_DistrictWhy Is Colorado Building a 22 MILLION TON Rock Wall in the Rocky Mountains?
https://www.youtube.com/watch?v=0eFTrOpueYE