Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Firehole River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Firehole River, the highest being situated at an altitude of ft, the .

The Firehole River is a 21-mile long tributary of the Madison River located in Yellowstone National Park. The river was named for the steam vents and hot springs that line its banks, creating a unique hydrological environment. The Firehole River is fed by several thermal springs and geysers, including the famous Old Faithful. The river supports a diverse population of fish, including rainbow and brown trout. Additionally, several dams and reservoirs along the river provide hydroelectric power to the surrounding areas. Recreationally, the Firehole River is popular for fishing, swimming, and rafting. However, due to its sensitive ecosystem, the river is subject to strict regulations to protect its fragile ecosystem. The area surrounding the river is also used for agriculture, with several ranches located along its banks.