LST001
Location: 44.4456839, -110.8055413
The route starts at the Kepler Cascades parking pullout. Before you start the hike, follow the paved trail at the northern end of the pullout to a viewing platform. Look down to see these impressive cascades churning through a rocky gorge. Next, hike south on the well-traveled dirt trail that starts at the southern end of the pullout. The path parallels the river and leads to the Lone Star Geyser parking area.
LST002
Location: 44.4450481, -110.804919
From the Lone Star parking area, head south on Lone Star Trail, an old paved road.
LST003
Location: 44.4375681, -110.8043236
Cross a bridge over the Firehole River.
LST004
Location: 44.433979, -110.805552
Pass a trail on the right that leads to another geyser. Continue heading south.
LST005
Location: 44.4261068, -110.7982886
Pass Spring Creek Trail on the left.
LST006
Location: 44.4184328, -110.8057988
The road ends here. Continue 250 feet farther to Lone Star Geyser logbook.
LST007
Location: 44.4181224, -110.8065203
Lone Star Geyser: Check the logbook to determine eruption times for this dramatic (and fairly reliable) geyser. Lone Star usually erupts every 3 hours, shooting water and steam up to 45 feet into the air from its large cone (12 feet high and 8 feet wide). Get your camera ready and wait for the eruption, or turn around and follow the road back to the trailhead.
Lone Star Geyser
Location: 44.4181971, -110.8063486
Kepler Cascades
Location: 44.4457835, -110.8058095
Kepler Cascades
Location: 44.445755, -110.805769
Kepler Cascades
Location: 44.4452837, -110.8054474
Kepler Cascades
Location: 44.4452684, -110.8054098
River Views
Location: 44.4332282, -110.8055091
Interpretive Sign
Location: 44.4182106, -110.8062896
Lone Star Geyser
Location: 44.418178, -110.8063969
Lone Star Geyser Time Lapse
Location: 44.4181416, -110.806472
This easy, 4.8-mile out-and-back starts from the Kepler Cascades parking area. Check out these impressive cascades before following the paved Lone Star Trail to its namesake geyser. The trail crosses the Firehole River after half a mile and climbs gently through forest and several meadows. After 2.5 miles, the road ends near Lone Star Geyser, a dramatic (and fairly reliable) geyser that usually erupts every 3 hours, shooting water and steam 45 feet into the air. To calculate Lone Star's next eruption, continue 250 feet farther to a logbook with the geyser's recent eruption times. Relax and wait for the show, or turn around and follow the road back to the trailhead.
MORE PARK INFO: Yellowstone National Park, (307) 344-7381; nps.gov/yell/.
-Mapped by Jeff Chow