Fossil Hunting & Digging

Fossil Basin is a 52-million-year-old limestone graveyard that preserves an entire paleoecosystem, including fish, turtles, crocodiles, insects, mammals, birds and over 200 leaves.

Where to Go Fossil Hunting & Digging

Plan your fossil hunting trip to Fossil Basin where you can unearth your very own fossil fish! To learn more about the history of ancient Fossil Lake, stop by Fossil Butte National Monument. During the summer, the national monument has a Fossil Quarry Program where visitors can help with the fossil hunting, but you cannot keep any fossils found at the site.

However, the area has multiple private dig-your-own fossil quarries located in the hills surrounding ancient Fossil Lake, where you can hunt and dig for fossils, and often even take fossils home with you. Find more information on these private fossil quarries below.

Please remember to take care and travel responsibly when you visit.

American Fossil

American Fossil is an affiliate of Fossil Shack, Paleoland Holdings, and For several decades, they have been operating as fossil preparators and fossil retailers. Their quarry near Kemmerer, South Dempsey Quarry, is a world famous quarry and is one of only two locations in the world where a complete 3-Toed horse has been found. You can also find stingrays, shrimp, gar, paddlefish, amia, pike, dioplomystus, knightia, and even turtles, crocodiles, and much more.

For detailed directions and a map, click here. It is recommended to use the directions on their website and NOT Google Maps.

Farm Field Road
Kemmerer, WY 83101

(801) 836-7269

  • Open daily 8:00am – 5:00pm
  • Walk-ins accepted
  • Visitors get to keep every fossil that’s valued at $100,000 or less


  • 2 hours: $59
  • 4 hours: $89
  • 8 hours: $129
  • Children under age 6 are free with a paying adult
  • 10% discount for groups with 5+ paying adults

Blue Moon Quarry

Blue Moon Quarry, operated by Promise Land Fossils, is at 7,100 ft. with spectacular views overlooking parts of Fossil Butte National Monument 4 miles to the west. Also located on the property is an ancient Indian campsite where an amazing variety of artifacts have been found.

The quarry is located 6 miles west of Kemmerer on U.S. Highway 30. For detailed directions and a satellite map, click here.

PO Box 152
Kemmerer, WY 83101

(307) 877-3641

  • Open every day from May 1st to the first snow
  • Reservations referred & drop-in’s accepted if guide available
  • Visitors get to take everything they find, except rare items
  • All necessary equipment provided
Rates: Adult Child
4 Hours $55.00 $35.00
8 Hours $100.00

Fossil Safari

Warfield Fossils invites you to come on a Fossil Safari® where you can go fossil hunting and dig your own fossil fish in their private quarry. There are an abundance of fossil fish in the “Green River Formation.” Most people find enough fish to satisfy their appetite in the first two hours.

All of the fossils are Eocene age (40-60 million years old). The layers contain numerous fish and plant life. Other rare fossils frequently found are: reptiles, mammals and a few amphibians.

2072 South Muddy String Road
Thayne, WY 83127
(307) 883-2445

  • Open every day from Memorial Day through September from 8:00 AM – 4:00 PM
  • Gallery and gift shop at quarry site
  • Drop-ins accepted
  • Visitors get to take everything they find of the six common species: Mioplosis, Phareodus, Priscacara, Knghtia, Diplomystus, and Notogoneus
  • All necessary equipment provided
  • Ask about the 18-inch layer dig
Rates: Adult Child Groups 11+
1 Hour $30.00 $15.00
2 Hours $50.00
4 Hours $75.00 $37.50 $65.00
8 Hours $100.00 $50.00

In Stone Fossils

In Stone Fossils is a fossil gallery and retail store offering a variety of Green River Formation fossils. In addition, they also offer private fossil hunting and digging excursions with several amenities. The In Stone Fossils’ Quarry  18-inch Layer has revealed some of the most paramount of fossils, including a complete 13 foot crocodile. Also exclusive to their quarry is some of the most beautiful mineral replacement coloring, which causes the fossil fish to have deep earthy red tones in gorgeous detail.

413 Coral Street
Kemmerer, WY 83101

(307) 723-1141

  • Excursions bookable any dates between May 1st and September 5th 
    • Reservations required
    • Excursions start at $500 per person with a minimum of 2 people
    • Can keep all the mini fish fossils found during the excursion
    • Can keep up to $500 (retail price) worth fossils found from the premier 18-inch layer – excludes ‘rare’ species fossils
  • Gallery and retail store open 9:00am – 6:00pm daily

Tynsky’s Fossil Fish

Tynsky’s Fossils has four generations of family fossil hunting history, beginning in the 1960s. They offer digs in their private quarry and also have a fossil gallery.

716 JC Penney Drive
Kemmerer, WY 83101
(307) 413-0820

  • Open weekdays from 8:00 AM – 4:00 PM
  • Upper Split Fish
  • Visitors get to take up to 10 fossil fish
  • All necessary equipment provided
  • Children 7 and under dig FREE
Rates: Individual Group
3 Hours $65.00 $50.00

Ulrich’s Fossil Gallery

Ulrich’s Fossil Gallery is one of the first and largest purveyors of professionally prepared Eocene fossil fish from the Green River formation (Syncline Lake). Their vast selection of fine fossil-art is hand-prepared by an expert staff and excavated from their own fossil quarry. In addition to prepared fossils, Ulrich’s also offers fossil preparation kits and a variety of geological gifts and souvenirs.

Fossil Station #308
Kemmerer, WY 83101

(307) 877-6466

  • Open every day from spring to first snow
  • Digs start at 9:00 AM
  • Gallery at site & open year round
  • Reservations required
  • Visitors get to take 6-8 fossil fish
  • All necessary equipment provided
Rates: Individual
3-5 Hours $85.00

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