State Gemstone: Jade (1967)
State Fossil: Knightia [fish] (1987)
State Dinosaur: Triceratops (1994)

The world’s largest surface coal mine complex is located near Gillete, Wyoming and leads the U.S. in the product of Coal, Bentonite, and Trona.

Nearly every county has a large variety of rocks, gemstones, minerals, and fossils.

Yellowstone National Park is also located in Wyoming.

The best place to rockhound in Wyoming is Fremont County where you can find nephrite jade and Turritella Agates in abundance. The gravels of streams and rivers like the Sweetwater and Wind Rivers are great places to search for rocks and minerals like Quartz, Agate, and Petrified Wood.


Google Earth Coordinates: Latitude 41°52 minutes 6.92 feet North Longitude
110° 40 minutes 33.0 feet West

No Reservations are Needed! There is no need to call before you come, there are no phones at the quarry. There is always someone at the quarry during business hours.

If the Roads are wet & muddy do not attempt to drive to the quarry without a 4X4!

There are no amenities available at the quarry. (An outhouse is as fancy as it gets!)


We will give you the tools to dig, you can bring:

  • Buckets
  • Wrapping Paper
  • Water
  • Food
  • Sunglasses
  • Sunscreen
  • Hat
  • Gloves

The Fossil Safari® is open the Friday of Memorial Day Weekend
through September 30th
Open 7 days a week.
8am to 4pm

We accept cash, personal check, travelers check, and money orders.

$30.00 per person per “One” hour between 8 am – 4pm

$75.00 per person per “Four” hours between 8 am – 4pm

$100.00 per person per “Full Day” 8 am – 4pm

Children 12 and under are ½ price.

We accommodate Individuals, Families, and Groups of ALL Sizes!
Group rates for 10 or more people $70 each half day, $90 each full day.

Bryan found a fish fossil
fish fossil
fish fossil


Please note that rock collecting locations are always changing so be sure to check with the site owner for the most current information before going.

Dig safe, never go underground, and make sure to get permission from the landowner to search for and collect rocks.