Rockhounding At The U-Dig Fossil Quarry

The U-Dig Fossil Quarry, located in Utah, is a premier destination for fossil hunting enthusiasts. Known for its well-preserved trilobite fossils, the quarry attracts visitors from all over the world. The history of the U-Dig Fossil Quarry is rich with geological significance, making it a prime spot for both amateur and experienced fossil hunters.
Visitors to the U-Dig Fossil Quarry can expect to find a variety of fossils, including trilobites, brachiopods, and other ancient marine life. The area is not only popular for its abundant fossil deposits but also for its beautiful scenery and the unique experience of uncovering your own fossils.
The U-Dig Fossil Quarry offers a unique opportunity to dig for your own fossils in a controlled environment. The quarry is well-managed, ensuring that visitors have the best chance of finding high-quality specimens.
The quarry is open from mid-April to mid-October, weather permitting. During this time, visitors can enjoy a hands-on experience, guided by knowledgeable staff who can help identify and preserve their finds.
The U-Dig Fossil Quarry has a long history of fossil hunting, with reports of trilobite discoveries dating back to the early 1900s. Today, it remains a favorite spot for fossil hunters, with many visitors returning year after year to explore its rich deposits and enjoy the thrill of discovery.
In addition to trilobites, the area is known for its beautiful brachiopod fossils and other unique marine life that draw collectors and enthusiasts from all over the world. The quarry's unique geological formation provides a fascinating insight into the ancient marine ecosystem that once thrived in this region.
Pricing at the U-Dig Fossil Quarry ranges from $21 to $112 per person, depending on age and how long you want to dig. The quarry offers several packages, allowing visitors to choose the option that best suits their interests and budget.
Discounts are available for various groups, including 15% off for groups of 15 or more, Utah residents, active military, veterans, and seniors. These discounts make it an affordable and attractive destination for a wide range of visitors.

What Can Be Found At U-Dig Fossil Quarry
At the U-Dig Fossil Quarry, fossil hunters can find a variety of fossils, including:
- Trilobites: The primary attraction, known for their well-preserved state. These ancient marine arthropods offer a glimpse into prehistoric life and are highly sought after by fossil collectors for their intricate exoskeletons and detailed features.
- Brachiopods: Often found alongside trilobites, these marine organisms have a distinct shell shape and are important indicators of ancient marine environments. Their symmetrical shells and fine details make them a fascinating find for fossil enthusiasts.
- Crinoids: Occasionally found in the area, crinoids are marine animals related to sea stars and sea urchins. Known as "sea lilies," their fossilized stems and intricate structures add diversity to fossil collections and provide insights into ancient marine ecosystems.
- Corals: Adds a beautiful contrast to the other fossils. Fossilized corals, with their unique patterns and textures, offer a glimpse into ancient reef environments and the diversity of marine life that existed millions of years ago.

Trilobite Fossil Sample

Brachiopod Fossil

Crinoid Fossil Sample
Location
The U-Dig Fossil Quarry is located approximately 52 miles west of Delta, Utah, near Antelope Springs. It is approximately 142 miles from Provo, Utah to the quarry and about 182 miles from Salt Lake City to the quarry.
Once in Delta, you will travel 32 miles west of Delta on highway 6/50. At the U-Dig Fossil Sign, between mile markers 56-57, turn north. Then travel 20 miles down a well-maintained, gravel road to reach the U-Dig trilobite quarry. There are U-Dig signs posted along the 20 miles of gravel road to keep you on the correct route. Any type of vehicle can travel this gravel road.
The quarry is located at coordinates: N 39 21 17.4 W 113 16 43.4. In decimal format, this is 39.35483333, -113.2787222.
The U-Dig Fossil Quarry is a premier destination for fossil hunting. The private dig site, managed by a local company, offers more intensive and productive fossil hunting experiences for a fee.
Recommended Gear and Tips
When visiting the U-Dig Fossil Quarry, it's important to come prepared. Here are some recommendations for your trip:
- Plan to stay for at least a full day to fully explore the area and increase your chances of finding valuable fossils.
- Bring plenty of water, snacks, and sun protection, as the area can get quite hot and there are limited facilities nearby.
- Wear sturdy shoes and protective gloves to prevent injuries from sharp rocks and tools.
- Carry tools such as rock hammers, chisels, and safety glasses to safely extract and handle the fossils you find.
Fossil Hunting Tips For U-Dig Fossil Quarry

Trilobites can often be found by carefully breaking open larger rocks. Look for areas where the rocks have weathered and eroded, as this can make it easier to find exposed fossils.
Using a rock hammer, carefully chip away at the rock to reveal potential fossils. The fossils can range in size and are typically found in small cavities or vugs within the rock.
Another effective method is to search the ground surface for loose fossils that have been naturally weathered out of the rock. These can often be found in the sandy areas surrounding the dig site.
Bring a sifter or a small hand-held screen to help separate the fossils from the sand and dirt. This can make it easier to spot the fossils and other minerals like quartz and agate.

Recommended Gear
Other Dig Sites in Utah
Utah is a fantastic destination for rockhounding enthusiasts. With its diverse geological features and rich deposits of various minerals and gemstones, the state offers numerous dig sites that cater to both beginners and experienced rockhounds. From stunning red beryl to vibrant topaz, Utah's dig sites provide an exciting and rewarding experience for all.