Lone Star Geyser Trail
A gentle riverside walk on an old service road to a large cone geyser that erupts roughly every three hours.
Route overview
Lone Star Geyser Trail in Wyoming / Montana / Idaho.
Lone Star Geyser Trail follows a mostly gentle former service road through a quieter section of the Upper Geyser Basin. The destination is a 12 ft / 3.6 m geyser cone whose eruptions can reach about 45 ft / 13.7 m. The route is straightforward, but total outing time may be longer when waiting for an eruption.
Trail facts
- Country
- United States
- Region
- Wyoming / Montana / Idaho
- Distance
- 7.7 km
- Typical duration
- 2–3 hours walking, excluding any eruption wait
- Difficulty
- Easy
- Elevation gain
- Minimal / not officially quantified m
- Best season
- Summer and fall; winter use requires separate winter travel assessment
- Trail type
- Out-and-back
Access and logistics
- Permits and access
- No day-hike permit or reservation; park entrance pass required
Safety context
Remain on the designated surface near the geyser. Carry bear spray, allow extra daylight for eruption timing and do not rely on mobile service. Check current official conditions, closures, weather and access rules before departure.
Remain on the designated surface near the geyser. Carry bear spray, allow extra daylight for eruption timing and do not rely on mobile service.
Highlights
Firehole River; Lone Star Geyser; quieter geyser-basin setting
Why find a buddy
Well suited to buddies who enjoy an unhurried objective. Agree on a maximum eruption-wait time to prevent an unexpectedly late return.
Primary source
Explore and prepare
Discover hikes by intent, read the hiking guides, review hiking safety, prepare a BuddyPack, or browse hiking plans.
Route conditions, access, services and transport can change. Verify time-sensitive information before departure.