geology Archives - Wild About Utah

Giant Hole in the Ground: Rio Tinto Kennecott Bingham Canyon Mine
Courtesy & Copyright Mary Heers, Photographer — Rio Tinto Kennecott Bingham Canyon Mine
Courtesy & Copyright Mary Heers, Photographer

Bingham Canyon Mine from the International Space Station 2007
Courtesy NASA — Bingham Canyon Mine from the International Space Station 2007. This astronaut photograph ISS015-E-29867 was acquired September 20, 2007, by the Expedition 15 crew with a Kodak 760C digital camera using an 800 mm lens. The image is provided by the ISS Crew Earth Observations experiment and the Image Science & Analysis Laboratory, Johnson Space Center. The image in this article has been cropped and enhanced to improve contrast.
Courtesy NASA

Kennecott Mine from Outside
Courtesy & Copyright Mary Heers, Photographer

Bingham Canyon Mine from the International Space Station 2007. This astronaut photograph ISS015-E-29867 was acquired September 20, 2007, by the Expedition 15 crew with a Kodak 760C digital camera using an 800 mm lens. The image is provided by the ISS Crew Earth Observations experiment and the Image Science & Analysis Laboratory, Johnson Space Center. The image in this article has been cropped and enhanced to improve contrast.
Courtesy NASA

Kennecott Mine from Outside
Courtesy & Copyright Mary Heers, Photographer

Years ago, I was flying in an airplane headed into Salt Lake when the captain came on the intercom and suggested we look out the windows. Below us was a truly huge hole in the ground. This was my first look at the Kennecott open pit copper mine.

In 1847, when Brigham Young and the first Mormon pioneers arrived in the Utah territory, this bit of land we were flying over was an 8,000ft mountain, part of the range the Native Americans called the Oquirrhs. Back then two brothers were grazing their cattle in these mountains when they noticed some gold that had washed down the mountain and settled in a sandy stream bed. They took the gold and showed it to Brigham Young. Brigham Young told them to “forget it.” Growing food for the survival of the settlers was his top priority.

The Bingham boys went back to grazing cattle, but by 1873 the news had gotten out that there was gold in these hills. People started to move in, many of them recent immigrants. The Finns and Swedes settled up Carr Canyon, while the Austrians and Slavs settled near the Highland Boy mine. The town of Bingham grew up around 30 saloons, its many brothels , as well as many boarding houses where single men rented a room and took their meals. I really enjoyed reading a memoir written by Violet Boyce, whose Aunt Becky ran one of these boarding houses. She tells us the softer side of life in the early mining town, like one miner, Pete Kalvos, who had a beloved pet magpie. Now this bird was the chief suspect when Aunt Becky’s thimble, teaspoons, and jeweled pin disappeared. Aunt Becky got so mad she took the bird outside and told it to “git.” Joe moped around the house until the bird returned. Luckily by then Aunt Becky had cooled off, because some repair work on the chimney had revealed the magpie nest and all the missing items.

Everything changed in Bingham Canyon in 1906 when new entrepreneurs and engineers decided the real future of the canyon was in copper, and the best way to get it out was with an open pit mine. Dynamite started blasting away the hillsides. Violet writes how vases were knocked off shelves and pictures turned sideways on the walls in her house. As the mine kept expanding, the walls of her house crumbled. Eventually the whole town was devoured.

Nowadays, if you go to the Visitor Center at the Kennecott mine, you can stand on the viewing platform on the upper lip of the huge bowl-shaped pit. It’s a breath taking 2 ½ miles wide, ¾ of a mile deep – and still getting bigger. Trucks the size of two-story houses lumber up the inside of the bowl carrying away the newly blasted debris. It now takes 2 tons of this mix of rock, dirt and ore to eventually produce 9 pounds of pure copper.

The story of this giant hole in the ground is woven into Utah’s history, but it’s also left its mark on our planet Earth. The Kennecott open pit copper mine is one of a handful of man-made structures that can be seen from the International Space Station as it passes over us, 250 miles away.

This is Mary Heers and I’m Wild About Utah

Credits:
Photos: Courtesy NASA and Mary Heers,
Featured Audio: Courtesy & © Anderson, Howe and Wakeman
Text: Mary Heers, https://cca.usu.edu/files/awards/art-and-mary-heers-citation.pdf
Additional Reading: Lyle Bingham, https://bridgerlandaudubon.org/

Additional Reading

Wild About Utah, Mary Heers’ Wild About Utah Postings

Crump, Scott, The Oquirrh Mountains, Utah History Encyclopedia, https://www.uen.org/utah_history_encyclopedia/o/OQUIRRH_MOUNTAINS.shtml

Strack, Don, Years of Discovery, to 1863, Railroads and Mining in Utah’s Bingham Canyon, Discovery to 1863, UtahRails.net, https://utahrails.net/bingham/bingham-discovery.php

The Bingham Mine – Our National Historic Landmark, Rio Tinto, https://www.kennecott-groundbreakers.com/stories/the-bingham-mine—our-national-historic-landmark

Milligan, Mark, GeoSights: A View of the World’s Deepest Pit – Bingham Canyon Mine Overlook, Utah Geological Survey (UGS), Utah Department of Natural Resources, Survey Notes, v. 49 no. 2, May 2017, https://geology.utah.gov/map-pub/survey-notes/geosights/geosights-bingham-canyon-mine/

Bingham Canyon Mine, USA, Captured 20 April 2021, by the MSI instrument, aboard the Sentinel-2 satellite, NASA, https://www.earthdata.nasa.gov/news/worldview-image-archive/bingham-canyon-mine-usa

1904 to 2022, Bingham Mine through the Years, https://youtu.be/yvoQuH9C2d0?si=wQhMZWXYs-M-zclW

Massive landslide at Utah copper mine generates wealth of geophysical data, GSA Today, The Geological Society of America, https://rock.geosociety.org/net/gsatoday/archive/24/1/pdf/gt1401.pdf

The Raft River Mountains: Clear Creek in Spring — Clear Creek in Spring
Courtesy & Copyright Holly Strand

Raft River Mountains
Courtesy & Copyright Holly Strand

Near Clear Creek Campground.
Courtesy & Copyright Holly Strand

The Raft River Mountains: Raft River Mountains — Clear Creek in Spring
Courtesy & Copyright Holly Strand

Raft River Mountains
Courtesy & Copyright Holly Strand

Near Clear Creek Campground.
Courtesy & Copyright Holly Strand

Hi, I’m Holly Strand of the Quinney College of Natural Resources at Utah State University.

In each of Utah’s six corners you’ll find one or more remarkable natural features. Moreover, each corner represents a totally different geographic environment. No doubt you are familiar with turquoise blue Bear Lake in the upper northeast and the magnificent High Uintas near the angle formed by Wyoming. Flaming Gorge and Dinosaur National Monument flank the lower northeast corner. The ancient ruins and Monument Valley draw international visitors to the southeast corner. The numerous canyon parks in Utah’s southwest corner offer endless opportunities for exploration.

That’s five corners. But what do you know about the northwest corner of our state? I live in Northern Utah and I had never been there. Resolved to correct this omission I consulted a map as well as Joan Hammer of Box Elder County’s Office of Tourism. I concluded that the Raft River Mountains were worth checking out. The highest point in the County, Bull Mountain is here. And the 40 mile long range defines the southernmost section of Sawtooth National Forest.

The Raft River Mountains are unusual in that they run east-west. The normal pattern for Basin and Range country is north-south. The east-west orientation creates an important geographic dividing line. For Clear Creek drains the northern slopes of the Raft River Mountains. Then Clear Creek joins the Raft River which flows north to the Snake River. Thus the mountains form the sole—and very small—piece of Utah real estate that belongs to the great Colombia River Basin. The southern slopes are part of Great Basin. Rain or snow falling on this side is absorbed into the ground or evaporates.

Another interesting fact: The Raft River Mountains is where you can view some of the oldest rock in Utah. In this region, outcrops of Precambrian material are 2.5 billion years old. The largest and thickest exposures are in the eastern half of the range.

The Raft River Mountain peaks may not make it onto post cards. But when I saw them they were nothing less than beautiful. The lower slopes of sagebrush had the grayish-green tint that emerges all too briefly in the spring. Snow still gleamed on the 8-9000 foot summits. Clear Creek was running full through riparian forest that was just starting to leaf out. There were no people at the campground but wildlife was plentiful. I saw wild turkey, deer, jackrabbits and squirrels. A few pronghorn looked up as I drove out through the sagebrush. All in all, I found Utah’s sixth corner to be well worth a visit.

For pictures and more information about the Raft River Mountains, go to www.wildaboututah.org

For Wild About Utah, and the Quinney College of Natural Resources, I’m Holly Strand.

Credits:

Images: Courtesy and Copyright Holly Strand
Text: Holly Strand

Additional Reading

Doelling, Hellmut H. Geology and Mineral Resources of Box Elder County. Utah Geological and Mineral Survey. 1980. Bulletin 115.,

Stokes, William Lee. 1988. Geology of Utah. Salt Lake City: Utah Museum of Natural History. SummitPost.org Bull Mountain. https://www.summitpost.org/bull-mtn-ut/183282https://www.summitpost.org/bull-mtn-ut/183282 [Accessed May 13, 2014 and July 10, 2020]

USDA Forest Service. Sawtooth National Forest, Raft River Division. https://www.fs.usda.gov/recarea/sawtooth/recarea/?recid=5806 [Accessed May 13, 2014 and July 10, 2020]

Hylland, Rebecca, What are Igneous, Sedimentary & Metamorphic Rocks?, Glad You Asked, Utah Geological Survey, https://geology.utah.gov/map-pub/survey-notes/glad-you-asked/igneous-sedimentary-metamorphic-rocks/