Where collection is allowed
Stonerose welcomes public fossil hunting and states that visitors may keep three fossils per day after staff review. Significant finds may be retained for science.
Start at the interpretive center, pay the current fee, receive instructions, and use only the active public dig area.
Tools, limits, and timing
Tools and methods
Use only staff-approved tools and splitting methods. Preserve both halves and bring every find back for identification.
Amount and use
Up to three staff-approved fossils per day under the current policy. Rare or significant material remains with the center for study.
Season and current status
Seasonal with published days and hours; verify current calendar, weather, capacity, and arrival cutoff.
Rules to confirm at the site
- Check in before digging.
- Work only the assigned site.
- Show every find to staff.
- Keep no more than the approved daily limit.
An old webpage, saved map, app layer, social post, or prior visit cannot override a current closure, posted boundary, permit condition, mining claim, staff instruction, or landowner decision.
What makes the site geologically useful
Fine Eocene lake sediment near Republic preserves delicate leaves, insects, fish, and other organisms from roughly 50 million years ago.
Part and counterpart and the exact layer add scientific value, so thin shale should be split methodically.
A low-impact trip plan
- 1
Open the current official source and check alerts before leaving home.
- 2
Confirm the property boundary, parking location, and activity rules on arrival.
- 3
Begin with observation or surface searching and make the smallest possible disturbance.
- 4
Photograph context before handling any material that the current rules allow you to keep.
- 5
Pack out every item you brought and leave protected or uncertain material in place.
Site-specific preparation
- Shale edges are sharp and striking tools require goggles.
- Heat and exposure vary by season.
- Do not climb or undercut the working face.
Official sources
Open every relevant source shortly before departure. Fees, booking windows, fire rules, seasons, roads, and collection conditions can change without notice.
- Public dig and current keep policy Stonerose Interpretive Center
- Washington rockhounding and fossil rules Washington Department of Natural Resources
Access and rule review: September 18, 2026. This guide is educational planning information, not a permit, reservation, boundary survey, or legal opinion.