Highlight • Natural Monument
Hiking
5.0
(4)
Mountain biking
5.0
(2)
Cycling
5.0
(1)
Lone Star Geyser is a captivating natural monument nestled within the vast wilderness of Yellowstone National Park in Wyoming, United States. This distinctive cone-type geyser, standing at an elevation of approximately 2329 meters, is celebrated for its relatively predictable eruptions and its secluded setting. It resides in the tranquil Lone Star Geyser Basin, about 4.8 kilometers (3 miles) southeast of the more bustling Upper Geyser Basin and the iconic Old Faithful geyser, offering a unique and intimate geothermal experience.
What truly draws visitors to Lone Star Geyser is the opportunity for a more serene and less crowded encounter with Yellowstone's geothermal wonders. Hikers and cyclists often praise the peaceful journey along the Lone Star Trail, which leads to the geyser. The impressive sight of its 12-foot tall geyserite mound, adorned with subtle cream and grey thermophilic runoff, combined with the powerful, regular eruptions, creates a memorable natural spectacle that many consider a highlight of their park visit.
To reach this natural marvel, visitors typically embark on the Lone Star Trail, an old service road that has been converted into a paved path suitable for both hiking and biking. The trailhead is conveniently located near Kepler Cascades on the Grand Loop Road. This relatively flat, 5.4-mile out-and-back journey is considered family-friendly, though some prefer the slightly longer, unpaved Howard Eaton Trail, which is also part of the Continental Divide National Scenic Trail. Planning your visit around the geyser's eruption schedule, which occurs approximately every three hours, is key to witnessing its full display.
The best time to visit Lone Star Geyser is generally during the warmer months when the trail is clear of snow, allowing for comfortable hiking and cycling. The journey along the Firehole River through a lodgepole pine forest provides a scenic backdrop, making the approach as rewarding as the destination itself. Many visitors enjoy the quiet anticipation of an eruption, often consulting a logbook at the site to help predict the next display.
The primary route to the geyser is the Lone Star Trail, a 5.4-mile (8.7 km) round trip that is mostly paved and offers a gentle elevation gain, making it accessible for a wide range of abilities. This trail is well-suited for a leisurely hike or a pleasant bike ride, providing a direct path to the geyser's isolated location.
Witnessing Lone Star Geyser erupt is a truly special moment, with water and steam shooting 9 to 14 meters (30 to 45 feet) into the air for 20 to 30 minutes. Before the main event, smaller, minor eruptions often precede the grand display, adding to the anticipation. The surrounding area is also rich with colorful bacteria mats in the runoff channels and smaller fumaroles, offering additional geological features to observe while waiting for the geyser to perform.
Whether you prefer a leisurely walk or a scenic bike ride, the Lone Star Geyser trail offers a rewarding experience for all. You can explore various routes and plan your visit to this unique Yellowstone attraction using komoot, discovering detailed maps and community insights to make the most of your adventure. The opportunity to immerse yourself in the park's geothermal wonders away from the main crowds makes this a highly recommended destination for hikers and cyclists alike.
This Highlight is in a protected area
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Tips
May 9, 2023
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April 24, 2020
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June 1, 2020
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Nearby routes
Best routes near Lone Star Geyser

4.5
(4)
18
hikers
13.8km
03:43
170m
170m
Hike the moderate 8.6-mile Old Faithful to Lone Star Geyser Loop in Yellowstone for diverse scenery and a unique geyser viewing experience.

4
hikers
25.7km
06:51
280m
280m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
Details
Informations
Elevation 2,330 m
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While the Lone Star Geyser trail is generally open year-round, winter conditions can significantly impact accessibility. The trail, an old service road, is often covered in snow and ice, making it suitable for cross-country skiing or snowshoeing rather than hiking or biking. Always check current park conditions and road closures before planning a winter visit, as the Grand Loop Road leading to the trailhead may be closed.
No, pets are generally not allowed on trails or boardwalks in Yellowstone National Park, including the Lone Star Geyser trail. Dogs are permitted only in developed areas, such as roads, campgrounds, and parking lots, and must be on a leash no longer than six feet. This policy is in place to protect both wildlife and pets.
The primary Lone Star Trail is an old paved service road, making it relatively flat and wide. While it is not officially designated as fully wheelchair accessible, its paved surface and gentle grade may accommodate some mobility devices. However, conditions can vary, and it's advisable to check with the park service for the most current information on trail surface and potential obstacles.
The designated parking area for the Lone Star Geyser trail is located at the Lone Star Trailhead, near Kepler Cascades on the Grand Loop Road. This trailhead provides direct access to the 5.4-mile out-and-back trail. Parking can fill up quickly during peak season, so arriving early is recommended.
There are no direct amenities like restrooms or food services at the Lone Star Geyser itself or at the trailhead. The closest services, including restrooms, restaurants, lodging, and general stores, are available at the Old Faithful Village, which is approximately 3 miles (4.8 km) away. Plan to bring all necessary supplies for your hike.
For a hike to Lone Star Geyser, it's advisable to pack essentials such as water, snacks, sunscreen, insect repellent, and layers of clothing suitable for varying weather conditions. Comfortable hiking shoes are recommended. Binoculars can enhance wildlife viewing, and a camera is great for capturing the geyser's eruption. Don't forget a small first-aid kit.
The trail to Lone Star Geyser passes through a lodgepole pine forest alongside the Firehole River, offering opportunities for wildlife viewing. Common sightings include bison, elk, deer, and various bird species. While less common, bears can also be present in the area, so carrying bear spray and knowing how to use it is recommended. Always maintain a safe distance from all wildlife.
The most common route to Lone Star Geyser is the 5.4-mile out-and-back trail along the old service road. While there isn't a direct loop trail to the geyser itself, some hikers combine their visit with sections of the longer Howard Eaton Trail, which runs parallel to the main trail for a portion and is also part of the Continental Divide National Scenic Trail. This can offer a slightly different experience, though it's not a full loop back to the trailhead.
Beyond the impressive geyser itself, the Lone Star Geyser Basin features several other interesting geological elements. You can observe colorful bacteria mats in the runoff channels that flow towards the Firehole River, as well as smaller fumaroles emitting steam and hot gases. The geyser's substantial 12-foot tall mound is made of geyserite, a mineral deposit formed by the geyser's activity, showcasing the ongoing geological processes.
Lone Star Geyser is known for its relatively predictable major eruptions, occurring approximately every three hours. Visitors often consult a logbook kept at the geyser site, where previous eruption times are recorded, to help estimate the next display. Before a major eruption, the geyser often exhibits one or two minor eruptions, reaching 15 to 20 feet in height and lasting about five minutes, which can serve as a precursor.
Public transportation options directly to the Lone Star Geyser trailhead are very limited or non-existent. Yellowstone National Park does not have an extensive internal public transit system that serves all trailheads. Most visitors access the park and its attractions, including Lone Star Geyser, by private vehicle. Some tour operators offer guided trips within the park, which might include stops near the trailhead.