Lost Canyon, Needles District, Canyonlands
National Park, San Juan County, Utah.
Photographer: Robert Blackett

Backpackers traverse a “slick rock” rim of the Permianage Cedar Mesa Sandstone.

Maple Canyon, eastern San Pitch Mountains, Sanpete County, Utah.
Photographer: Don Clark

Cretaceous-age conglomerate deposited during a mountain-building episode 75 million years ago.

Check out this little clip documenting the installation of the new signage!

Then come in and check out all of the publications available at the
Utah Natural Resources Map & Bookstore
Or take a look online:
mapstore.utah.gov

Capitol Reef National Park, Wayne County, Utah
Photographer: Tyler Knudsen

Juniper-covered siltstone ledges of the Torrey Member of the Triassic-age Moenkopi Formation (foreground) rise to a seemingly impenetrable wall of Triassic- to Jurassic- age Wingate (red vertical cliffs in middle of photo) and Navajo (white bluffs at top of cliff) Sandstones in Capitol Reef National Park.  Early explorers referred to any long barrier to travel as a “reef,” while the dome-shaped bluffs of Navajo Sandstone reminded them of the United States Capitol building—thus the name “Capitol Reef.”

The UGS paleontology field program, Jim Kirkland, Don DeBlieux, and Scott Madsen, recently complete 2 weeks of field work at our Stike’s Quarry dinosaur site in eastern Utah.  This spectacular site has been the subject of news reports earlier this summer and is the site where a episode of the Discovery Channel television show Dirty Jobs was filmed in 2011.  This site contains the well-preserved remains of numerous dinosaurs, including adult and juvenile Utahraptor skeletons.  We have had difficulty removing the bones from this site because there are so many clustered together.  Because they are packed so closely together, we have had to use plaster and burlap to jacket a large block with the hope of one day using a large cargo helicopter to fly the block – now on the order of 5 tons – off of the large mesa on which it is located.   The large number of bones at this site, along with the nature of the sediments that they are preserved in, leads us to hypothesize that the animals were trapped in a dewatering feature (something similar to quicksand).   Our work this September focused on further excavating, isolating, and pedestaling the main block.  Work was initially hampered by several days of rain which pinned our team in camp unable to work or leave because the ground and roads became muddy and impassible.

As the weather cleared,

we were able to make good progress with an electric powered jack-hammer and pneumatic chisels to remove rock from around and under the block.  This was not the fine-detail, dental pick, and paint brush paleontology that many picture – but back breaking manual labor more akin to highway construction!

Many tons of rock where removed by hand and a tunnel was completed under the jacket leaving it on two large pedestals.


The exposed rock around the bone was covered in plaster to protect it from the elements.  Our final task to ready the block for transport, is to construct a wooden timber frame and box around the jacket to reinforce and stabilize it.  We hope to complete this work in the Spring of 2014.  We were assisted in the field by several volunteers from the Utah Friends of Paleontology.  The excavation was conducted under a permit from the State of Utah.  The BLM allowed us access to the site.

Tabbys Peak in the Cedar Mountains, Tooele County, Utah.
Photographer: Don Clark

About 40 million years ago, magma intruded to form a large dike. While cooling, the magma shrank and fractured into a six-sided column pattern, resulting in the blocky appearance of the weathered andesite at Tabbys Peak in the Cedar Mountains, Tooele County.