Nestled off Highway 93 north of Golden, 80-year-old Ralston Reservoir is one of three "terminal" water storage facilities in Denver Water’s collection system. This means it is the final stop for mountain water before it heads to the treatment process.

With a capacity of only 10,776 acre-feet, Ralston Reservoir Denver Water's most diminutive reservoirs; however, its role in the water system is anything but.

Trivia question: Can you name Denver Water’s other two terminal water storage facilities?