Lone Star Geyser
A solitary geyser in the forest south of Old Faithful, erupting from a sinter cone about 3.7 meters high roughly every three hours.
Start from the Kepler Cascades parking area and follow the flat old asphalt road about 4.8 kilometers to the geyser. The round trip takes about 2.5 to 3 hours and can also be done by bike. The geyser erupts roughly every three hours. Major eruptions last about 30 minutes and reach 9 to 14 meters high. A logbook beside the geyser records the time of the last eruption. The trail follows the upper Firehole River and passes through forest, and it sees far fewer people than Old Faithful. This is bear country, so hike with others and carry bear spray.
Opening hours
Open all day (daytime hiking)
Nearby sights
- Old Faithful
- Old Faithful Inn
- Upper Geyser Basin & Morning Glory Pool
- Fairy Falls Trail & Grand Prismatic Overlook
- Grand Prismatic Spring
- Fountain Paint Pot
- Firehole Canyon Drive & Firehole Falls
- West Thumb Geyser Basin