Utah’s Sun Tunnels turn an empty desert into a solar calendar you can walk through: What we know so far

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Meet Nancy Holt’s Sun Tunnels

You drive for hours through Utah’s Great Basin Desert with nothing around you but sagebrush and distant mountains, and then four concrete tunnels rise out of the flat ground like something dropped from the sky. Artist Nancy Holt built them in the 1970s, and she designed each one to frame the sun at a specific moment of the year. You can walk right up and climb inside. What happens next depends entirely on when you show up. Flickr/Retis

Four Concrete Tunnels Rise From The Desert Floor

The four tunnels sit on the open desert floor, arranged in a loose X so you can walk between them in any order. Each one stretches 18 feet long and 9 feet across, big enough to duck inside and sit without touching the walls. They rest in a flat, treeless valley in Utah’s Great Basin Desert, far from town. Mountains ring the horizon, but nothing else breaks up the land. Out here, the tunnels are the only large objects for miles, so they feel even bigger up close. Wikimedia Commons/Retis

The Artist Who Shrank The Desert Down

Nancy Holt built the Sun Tunnels between 1973 and 1976, working alone in a landscape most people would find too big to hold onto. She wanted the desert to feel closer to human size, so she framed pieces of it inside the tubes instead. Holt became one of the leading names in land art, a movement where the ground itself becomes the material. The Dia Art Foundation took over the site in 2018 and repaired cracks in the concrete the following year. Today the work stands as one of the best-known pieces of American land art. Shutterstock

Two Tunnels Track The Summer Sun

Two of the four tunnels line up with the sunrise and sunset on the summer solstice, while the other two catch the sun on the winter solstice instead. On those two days, the sun settles dead center in the mouth of a tunnel, framed like a photograph. People start arriving before dawn and stick around through dusk just to watch it happen. The alignment isn’t a coincidence or a bonus feature. It’s the entire reason the tunnels exist, and seeing it line up is the moment most visitors plan their whole trip around. Flickr/Retis

Tiny Holes That Turn Into Stars

Holt drilled a series of small holes through the top of each tunnel, and she didn’t place them randomly. The pattern matches four constellations: Draco, Perseus, Columba and Capricorn. When the sun is out, light pours through those holes and scatters bright spots across the curved walls inside.

The spots crawl slowly as the sun moves overhead, so the pattern never sits still for long. Step inside on a sunny afternoon and you’re standing under a private sky, even though it’s the middle of the day. Flickr/Retis

Climb Inside And Cool Off

You’re free to walk right up to any of the four tunnels and climb in without asking permission. The thick concrete stays cool and shaded, which feels like a small mercy after time spent in the open desert heat. From inside, each round opening frames its own picture of the desert and mountains beyond, cutting the huge landscape down to something you can actually take in at once. That’s exactly what Holt was after. Kids and adults both tend to drift from one tunnel to the next, peeking through the star holes along the way. Shutterstock

One Of The Darkest Skies You Will Find

The Sun Tunnels sit far enough from any city that the night sky turns close to pitch black, packed with stars edge to edge. On clear nights, the Milky Way stretches across the whole sky in one unbroken band. The star holes cut into the tunnels line up with all of that already sitting overhead, which is part of why photographers keep coming back. Some visitors pitch a tent nearby just so they can catch the sunset and the stars in the same trip. Out here, the art and the sky end up doing the same job. Shutterstock

Lucin, The Ghost Town Next Door

A few miles from the tunnels sits Lucin, a railroad town that emptied out long ago and never filled back in. Lucin got its start in 1869, the same year crews finished the transcontinental railroad. The town moved to its current spot in 1903, after a new rail shortcut cut straight across the Great Salt Lake. Almost nothing is left now, just a pond, a handful of old foundations and a stand of trees holding on. Migrating birds still stop at the pond, which makes it a quiet place to pull over on your way out. Shutterstock

Driving The Old Transcontinental Railroad Grade

The road to the Sun Tunnels crosses the path of the original transcontinental railroad, the same route that linked the country coast to coast back in the 1860s. A string of small rail towns once lined this stretch, and most of them have faded into the desert without much trace. Driving the old grade turns the trip into a rolling piece of American history rather than just a way to get somewhere. Keep an eye out for railroad crossing signs along the way. They still mark the route, and they work just as well as landmarks now as they did back then.

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The post Utah’s Sun Tunnels turn an empty desert into a solar calendar you can walk through appeared first on When In Your State.

Wikimedia Commons/Dietmar Rabich

The Bonneville Salt Flats Sit Ten Miles South

About 10 miles south of the tunnels, the ground gives way to the edge of the Bonneville Salt Flats. The flats spread out flat and cracked and white, running all the way to the horizon in every direction. The land is so level and so wide that some people swear they can see the curve of the earth from the middle of it. That bright white surface makes for wide open photos with nothing to break the frame. The flats are famous well beyond Utah as the place where drivers chase land speed records. Shutterstock

The Tree Of Utah Rises Alone Off I-80

Along Interstate 80 near the salt flats stands an 87-foot sculpture called the Tree of Utah, and it looks nothing like anything else around it. Swedish artist Karl Momen built the piece, and it was dedicated in 1986. Six giant spheres, each coated in colorful rock and minerals, sit stacked on top of a tall concrete trunk. Hollow leaf-shaped pieces lie scattered across the salt around its base. Rising alone out of the flat white desert, it ends up being one of the most surprising roadside sights you’ll find anywhere in the state. Wikimedia Commons/Matthew.kowal

Why People Make The Long Drive

The Sun Tunnels reward anyone willing to leave the pavement behind for a while. What waits at the end is a rare mix of art, open sky and total silence you won’t find anywhere near a city. Standing inside a tunnel while light streams through the star holes and lands on the curved wall is the kind of moment that sticks with you long after you leave. The empty desert setting makes it feel personal, almost like the piece was built just for whoever happens to be standing there. Admission is free, and the site stays open every day of the year. Flickr/Retis

Visiting The Sun Tunnels In Box Elder County

If you want to see the tunnels for yourself, they sit in the Great Basin Desert near the ghost town of Lucin, in Box Elder County, roughly a four-hour drive west of Salt Lake City. The last several miles run over dirt and gravel, and you’ll want to drive them dry, since rain turns the road muddy fast. There are no restrooms, water, food or fuel at the site, and cell service is unreliable, so pack in what you need. The nearest gas and services sit in Montello, Nevada, about 45 minutes away. Admission is free year-round, with sunrise and sunset near the solstices drawing the biggest crowds. This article was created with AI assistance and human editing. Read more from this brand:

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The post Utah’s Sun Tunnels turn an empty desert into a solar calendar you can walk through appeared first on When In Your State.