Sawmill Geyser


Sawmill Geyser's eruptions are highly variable, some lasting only 9 minutes while others may last over 4 hours. The typical interval between eruptions is 1 - 3 hours. Overall it is erupting about 30% of the time. Sawmill received its name because water spins in its crater as it erupts looking somewhat like the rotating circular blade of a lumber mill.

*Taken from the Old Faithful Area Interactive Map

Feature Type


Inventory ID



Latitude: 44.46552
Longitude: -110.8366
Survey Date: April 8, 1999

Geographic Area: Firehole River Drainage
Thermal Region: Upper Geyser Basin
Thermal Complex: Sawmill Group (Sawmill Complex)
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 4/8/1999 92.2°C 94°C 7.8 -- No
Download all data for this feature.