Distance, round trip: 4.8 miles
Difficulty: easy
Trailhead: 3.5 miles south of Old Faithful Junction, just beyond parking for Kepler Cascades
This pleasant, partially paved trail follows an old service road beside the Firehole River to the geyser. Cyclists must dismount at the end of the asphalt and walk the last few hundred feet. Lone Star erupts up to 45 feet from a 12-foot cone approximately every three hours.
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