THE ADVENTURE COLLECTIVE® · Independent discovery and booking for outdoor travel
Unearth ancient fossils in Wyoming’s renowned Green River Formation with expert guides. Join this hands-on adventure for a unique glimpse into prehistoric life and geological history.
Unearth ancient fossils in Wyoming’s renowned Green River Formation with expert guides. Join this hands-on adventure for a unique glimpse into prehistoric life and geological history.
Book with In Stone Fossils LLC
Verified experiences and guided adventures in the surrounding area.
Operated by In Stone Fossils LLC · Kemmerer, Wyoming
The Green River Formation, located in the heart of Wyoming, is renowned for its exceptional fossil deposits that date back millions of years. In Stone Fossils LLC offers a one-of-a-kind Fossil Dig Adventure that combines hands-on archaeology with immersive education. This guided expedition takes visitors to exclusive fossil layers where ancient creatures like entelodonts, crocodilians, and various fish have been remarkably preserved. The experience stands out because of its accessibility—whether you're a seasoned paleontologist or a curious beginner, every participant gets to unearth real fossils from the sedimentary rock beds that vast geological history has preserved beneath the surface.
What makes this trip truly special is the blend of adventure and learning. Guests receive expert guidance on fossil identification, preparation, and preservation, making the journey both educational and highly engaging. The trip typically includes gourmet dining in luxurious accommodations, providing a comfortable base after days spent in the field. Additionally, visitors can learn about the area's significant role in paleontological discoveries since the formation’s fossils have provided crucial insights into prehistoric life.
In Stone Fossils LLC is driven by a passion for sharing Wyoming’s deep history with adventurers of all levels. Their team ensures a safe and enriching environment, cultivating a sense of discovery that’s hard to beat. Whether you’re interested in capturing stunning photos of the geological formations or unearthing a rare fossil to bring home, this adventure embodies the thrill of discovery—an experience that leaves a lasting impression on all ages. Perfect for families, landscape enthusiasts, or serious fossil collectors alike, this trip guarantees a memorable journey into Earth’s distant past.
moderate.
2–4 hours.
Participants should be in decent physical condition, able to work on uneven terrain for extended periods.
Yes, beginners are very welcome; guides provide instruction suitable for all levels.
Participants are encouraged to take home small fossils they find, following local regulations.
The package includes guided digs, fossil preparation workshops, gourmet dining, and accommodations.
No prior experience is necessary—our guides will walk you through every step.
Yes, children with an interest in fossils and outdoor activity will enjoy this trip.
Wear sturdy, weather-appropriate clothing and bring sun protection.
Fossil discoveries in Green River date back to the early 20th century, revolutionizing our understanding of prehistoric ecosystems.
The site follows strict guidelines to preserve fossils and minimize environmental impact, supporting ongoing scientific research.
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.
Book with In Stone Fossils LLC