Lake Granby is the largest storage reservoir in the C-BT Project. It is located on the Colorado River about 4 1/2 miles northeast of Granby.
Water is pumped from the Farr Pump Plant at the north end of Lake Granby to Shadow Mountain Reservoir through the Granby Pump Canal. Pump head elevations vary depending upon the reservoir's surface elevation.
The first water storage at Lake Granby began on Sept. 14, 1949.