From the Carbon Valley Miner and Farmer (Gene Sears):
Nearly 100 participants attended the tour, a mix of taxpayers, city officials, water district employees and students, split between two buses hired by the district for the trip. Starting at NCWCD headquarters in Berthoud, the tour headed northeast up Big Thompson Canyon, through Estes Park and onto Trail Ridge Road in Rocky Mountain National Park, headwaters for much of the district’s supply…
Built at a cost of $162 million, the project began full water deliveries in 1957. As it stands now, the Colorado-Big Thompson system consists of 12 reservoirs, 35 miles of tunnels, 95 miles of canals and 700 miles of power transmission lines. Spanning 150 miles east to west and 65 miles north to south, C-BT provides water to almost 700, 000 irrigated acres and more than 750,000 people in the South Platte River Basin.
More Northern Colorado Water Conservancy District coverage here.