Unearth ancient fish fossils beneath the stars with expert guides in this hands-on paleontology adventure at the Green River Formation. Discover history and keep your findings!
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Difficulty
moderate
Duration
6 hours
Fitness Level
Participants should be in moderate physical condition, able to stand and dig for extended periods.
Wildlife
History
The Green River Formation has been a key fossil site since the early 20th century, revealing well-preserved aquatic life from the Eocene epoch.
Conservation
The site is managed with sustainability in mind, emphasizing minimal impact and preservation of its scientific importance.
In Stone Fossils LLC
Unearth ancient fish fossils beneath the stars with expert guides in this hands-on paleontology adventure at the Green River Formation. Discover history and keep your findings!
In Stone Fossils LLC is a paleontology tour operator based in Kemmerer, Wyoming that runs guided fossil-dig experiences at the Green River Formation.
The company offers four primary experiences: the Daytime Paleontology Experience with personalized one-on-one guidance; the Luxury Nighttime Paleontology Experience focused on upscale nighttime digs in productive beds such as the 18-inch Layer and sandwich beds; The Ultimate Fossil Dig Adventure, which combines guided excavations, exclusive access to specific fossil layers, hands-on preparation workshops, and luxury accommodations with curated dining; and the Baseline Nighttime Paleontology Experience, a six-hour dig where participants uncover ancient fish fossils and can keep their finds, with limited availability noted for the 2025 season.
In Stone Fossils emphasizes hands-on excavation, trained guides, and educational value. Guides demonstrate safe excavation techniques and fossil preparation methods during fieldwork and workshop sessions. Trips are suitable for families, collectors, and individual enthusiasts seeking immersive paleontology activities. Fieldwork takes place on-site at the Green River Formation, a recognized Eocene fossil locality, and reservations are recommended when booking limited nighttime or season-specific experiences.
By combining field excavation, guided instruction, and practical preparation workshops, In Stone Fossils provides authentic access to productive fossil layers while prioritizing safety, education, and responsible collecting practices.
Location
Kemmerer, WY
Base camp near the dig site
Fossil Site
Green River Formation
Eocene fish and fossil beds
Guided Tours
4 Experiences
One-on-one and group options
Season Availability
Limited for 2025
Limited spots for 2025 season
Secure limited-availability daytime, nighttime, luxury, or multi-day fossil digs at the Green River Formation — book now to guarantee participation.
Prepare for a night dig
Bring headlamps, warm clothing, and sturdy footwear for a comfortable experience.
Handle fossils carefully
Use gloves when handling fossils to avoid damage and preserve your finds.
Book in advance
Limited spots fill quickly—reserve your place early for this unique experience.
Bring a notebook
Document your findings and note the location for future reference.
Sturdy footwear
Supportive shoes protect your feet while digging in uneven terrain.
Headlamp or flashlight
Necessary for nighttime visibility during the excavation.
Warm clothing
Evening temperatures can drop; bring layers to stay comfortable.
Gloves
Protect your hands while handling fossils and tools.