The source of this cool water is just off Whittington Avenue near the base of West Mountain. In 1911, park employees built a trough for this spring flow to gather in, and in 1954 a jug fountain was built at the present location. Emerging from Big Fork Chert, the water is over 6000 years old.

Water averages 66º Fahrenheit/19º Celsius

Mineral content in Parts per Million (ppm):
Silica (SiO2) 9.9
Bicarbonate (HCO3) 150.0
Calcium (Ca) 60.0
Sulfate (SO4) 10.0
Magnesium (Mg) 3.0
Chloride (Cl) 2.4
Sodium (Na) 1.7
Nitrate (N) 0.14
Potassium (K) 1.0
Iron (Fe) 0.17