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.