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Cleveland Lloyd Dinosaur Quarry

San Rafael

Huntington, Utah
Official Website
Historic Place, Museum, Recreation/Park

Prior to visiting, guests are encouraged to call

(435)636-3600 to double-check qarry hours.

Welcome sign at the Quarry








Historic Place, Museum, Recreation/Park

Prior to visiting, guests are encouraged to call

(435)636-3600 to double-check qarry hours.


Summer  Hours

Monday - Saturday

10 a.m. - 5 p.m.


12 p.m. - 5 p.m.


 Spring and Fall Hours

Thursday - Saturday

10 a.m. - 5 p.m.

Price Details

Adults (16+):  $5

Youth (under 16): FREE

America the Beautiful and Golden Age/Access Pass Holders: FREE



Walk 5 miles of trails, bone bed, 200 yard sidewalk, picnick area in the bolder field, marvel at the rock formations, learn science! 

Reservation Info

BLM (435) 636-3600

Additional Details

Cleveland-Lloyd Dinosaur Quarry contains the densest concentration of Jurassic-aged dinosaur bones ever found. Over 12,000 bones (belonging to at least 74 individual dinosaurs) have been excavated at the quarry. Cleveland-Lloyd Dinosaur Quarry has helped paleontologists learn a great deal about the Jurassic period, yet the site presents at least as many mysteries as it helps to solve. Curiously, more than 75% of the bones come from carnivores, primarily Allosaurus fragilis. With more than 46 individual specimens of Allosaurus, scientists have been able to deduce much about how Allosaurus aged and compare individuals to better understand intraspecies diversity. Yet the sheer density of bones proposes many questions. How did the carcasses of so many animals end up in one place, and why are most of them meat-eaters?   While many good hypotheses have been presented they all still have major flaws, so the mystery continues to be unsolved.

The Museum - Virtual Tour l Junior Explorer

Inside the museum, visitors can view a replica skeleton of an adult allosaurus and the skulls of a camarasaur, a diplodocus, and a stegosaur.  Guests are presented with data gathered at Cleveland-Lloyd through interactive exhibits and are invited to create their own hypotheses about the site.  
 Mounted Allosaurus inside the Cleveland-Lloyd Museum 
Mounted Allosaur within the museum.

The Butler Buildings

The bone deposit is currently covered by two buildings protecting the bones from weather, thieves, and vandals.   One of the buildings housing the deposit is open to the public, and within it visitors can view partially exposed bones still in the ground. During the field season paleontologists and volunteers can be seen excavating bones or preparing them for study.

Exposed Bones visible inside the Butler Building
A cross section of exposed bones inside of the Butler Building. 


Rock Walk Trail:  This 1.4 mile loop is a self-guided interpreted trail focusing on the geology, natural history, and human history of the immediate area. 
Raptor Point Trail:  This .3 mile trail climbs 180 feet to the viewpoint Raptor Point. 
Rim Walk: The Rim Walk begins at Raptor Point and extends to the southwest for a mile before a small loop sends the hiker back to the start. 

There are on-site picnic tables, and drinking water is available during the warmer months.


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