Solute and geothermal flux monitoring using electrical conductivity in the Madison, Firehole, and Gibbon Rivers, Yellowstone National Park

► Chloride flux from Yellowstone is determined with constant conductivity monitoring. ► Geyser eruptions are easily identified with conductivity data in receiving rivers. ► Conductivity is used to quantify the mass of salts dissolved during storm events. ► The long-term output of thermal water can be monitored in a cost-effective manner.