Riverside Geyser


Situated on the bank of the Firehole River, Riverside Geyser is one of the most picturesque geysers in the park. During its 20-minute eruptions, a 75 foot (23m) column of water arches gracefully over the river. Eruptions are about 5-1/2 to 6-1/2 hours apart. There is water runoff over the edge of Riverside's cone beginning 90-135 minutes before an eruption.

*Adapted from the NPS Old Faithful Area Trail Guide and the Old Faithful Area Interactive Map

Feature Type


Inventory ID



Latitude: 44.47347
Longitude: -110.8408
Survey Date: June 19, 1999

Geographic Area: Firehole River Drainage
Thermal Region: Upper Geyser Basin
Thermal Complex: Giant Group
Ranger District Contact: Old Faithful District, Colleen Rawlings (307) 344-2701

Feature Data

Data Source Supplied By Sample Date Temp Vent Temp pH Cond Extended Data
Park 6/19/1999 82.1°C 93°C 7.76 -- No
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