Big Cub Geyser


The Lion Group consists of four geysers: Lion, Lioness, Big Cub, and Little Cub, which are all connected underground. Of these Lion has the largest cone and eruptions. Active phases normally occur each day. Eruptions of Lion Geyser can be as high as 50 feet (15 m) for 1 - 7 minutes and are often preceded by sudden gushes of steam and a deep roaring sound, hence the name Lion.

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

Feature Type


Inventory ID



Latitude: 44.464
Longitude: -110.8311
Survey Date: September 29, 1998

Geographic Area: Firehole River Drainage
Thermal Region: Upper Geyser Basin
Thermal Complex: Geyser Hill 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 9/29/1998 91.5°C 0°C 9.09 2100 µS/cm No
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