Where collection is allowed
The operator authorizes visitor collecting on its leased private quarry and publishes both the keep policy and the exceptional-specimen provision.
The remote quarry warns visitors not to rely on generic phone-map directions. Reservations are recommended because capacity is limited, although individual walk-ins may be accepted.
Tools, limits, and timing
Tools and methods
The quarry provides shale, splitting tools, instruction, identification help, and trimming service. Visitors should split material thinly rather than waste the productive layer.
Amount and use
Most finds may be kept. The operator states that an exceptionally valuable specimen above its published threshold is subject to a landowner royalty arrangement; scientifically valuable finds should be offered for institutional review.
Season and current status
Seasonal. Confirm the current opening dates, daily hours, capacity, prices, cancellation terms, and correct driving directions.
Rules to confirm at the site
- Use the operator’s route, not a generic map pin.
- Check in and pay before collecting.
- Split assigned shale efficiently.
- Show rare birds, mammals, reptiles, or other exceptional specimens to staff.
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
The Green River Formation records an Eocene lake ecosystem about 52 million years old.
Fish are the dominant visitor finds; complete rare vertebrates or associated specimens may have exceptional scientific importance.
A low-impact trip plan
- 1
Reserve during busy periods.
- 2
Bring food, water, sturdy shoes, gloves, and flat boxes.
- 3
Receive splitting instruction.
- 4
Inspect and preserve both halves.
- 5
Have staff identify and trim finds before transport.
Site-specific preparation
- The quarry is remote and has limited services.
- Heat, wind, lightning, sharp shale, and lifting are common hazards.
- Closed-toe footwear is required by the operator.
Official sources
Open every relevant source shortly before departure. Fees, booking windows, fire rules, seasons, roads, and collection conditions can change without notice.
- Quarry schedule and visitor information Fossil Lake Safari
- Keep policy and scientifically important finds Fossil Lake Safari
Access and rule review: September 18, 2026. This guide is educational planning information, not a permit, reservation, boundary survey, or legal opinion.