Nancy Holt's Sun Tunnels Is an Example of Earthworks Art
There's a place in the Utah desert where four concrete cylinders lie scattered across the landscape like giant hollow bones. At certain times of year — specifically the summer and winter solstices — the sun aligns perfectly through each tunnel, casting light in ways that feel almost too deliberate to be accidental. But it isn't coincidence. Nancy Holt designed Sun Tunnels to do exactly this. She built an observatory, a sculpture, and a meditation on time and space all at once, buried in the middle of nowhere where almost no one would see it.
That's the thing about earthworks art — it exists on its own terms, far from galleries and museums, and it asks you to go to it.
What Is Earthworks Art?
Earthworks art (also called land art or Earth Art) is a movement that emerged in the late 1960s and 1970s, where artists create large-scale works directly in the landscape using natural materials — dirt, rocks, sand, wood — or placed structures that interact with the land itself. Unlike traditional sculpture, earthworks aren't meant to be moved to a museum or collected in a gallery. They're tied to a specific place, often remote, and they change with the environment around them Simple as that..
Nancy Holt's Sun Tunnels is one of the most iconic examples of this. Holt oriented them so that during the summer solstice, the sun rises through one pair of tunnels and sets through the other. During the winter solstice, the alignment reverses. Also, created in 1976, the piece consists of four massive concrete cylinders, each about 9 feet tall and 8 feet long, arranged in a cross formation on the flat desert floor of the Great Basin near Lucin, Utah. She wasn't just making a sculpture — she was building a sundial, a calendar, and a monument to the passage of seasons.
How Sun Tunnels Fits Into the Land Art Movement
Holt was part of a loose group of artists — including Robert Smithson, Michael Heizer, and Walter De Maria — who were all exploring the same idea: what happens when you make art that's bigger than a gallery, art that can't be bought or easily displayed, art that belongs to the land itself?
Real talk — this step gets skipped all the time.
Smithson's Spiral Jetty, a coil of black rock and salt crystal extending into Utah's Great Salt Lake, was built the same year as Sun Tunnels. Heizer's Double Negative cuts two massive trenches into a Nevada mesa. De Maria's The Lightning Field is a grid of steel poles in New Mexico that attracts lightning strikes. All of these share a common impulse: to make something that can only be experienced by going there, by physically traveling to a specific place and standing in front of it.
Sun Tunnels is unique in this group because it incorporates the movement of celestial bodies. Most earthworks are static — they sit in place and you walk around them. But Holt's piece is only fully itself at particular moments. The tunnels are always there, but the light that passes through them makes the artwork complete only twice a year.
Why It Matters
Here's why this matters: Sun Tunnels forces you to think about time differently.
Most art exists in a moment. The experience is contained. You have to plan around the solstices, or at least understand that what you're seeing is incomplete. But Sun Tunnels can't be fully experienced in a casual afternoon visit. You walk into a museum, you look at a painting, you leave. The artwork is designed to make you aware of cycles — daily, seasonal, astronomical — that most of us ignore entirely.
There's also something powerful about the location. Plus, the Great Basin desert is vast and empty in a way that feels almost hostile. Practically speaking, it's not a scenic overlook or a national park. Think about it: it's just... Practically speaking, nothing, for miles. And in that nothing, Holt placed four concrete tubes and asked you to pay attention to the light.
That tension — between the extreme remoteness and the extreme intentionality — is what makes earthworks art so compelling. You can't move it. You can't buy Sun Tunnels. It's art that rejects the art world entirely. You can only go there, if you can find it Easy to understand, harder to ignore..
The Broader Significance of Earthworks
Earthworks art emerged partly as a reaction to the commercialization of the art world. But in the late 1960s, artists were frustrated that art had become a commodity — something bought, sold, stored, and displayed by wealthy collectors. Land artists wanted to make work that existed outside that system entirely. By placing art in remote locations, they made it inaccessible to the market in a fundamental way That's the whole idea..
It was also a reaction to the environmental movement. Artists like Holt were thinking about humanity's relationship to nature, and whether we could create something that worked with the landscape rather than imposed upon it. Still, sun Tunnels doesn't dominate the desert — it cooperates with it. Here's the thing — the concrete cylinders are almost invisible from a distance. On the flip side, you have to get close to see them. The artwork reveals itself only when you commit to approaching it.
How It Works
If you're planning to visit Sun Tunnels, here's what you need to know.
The four tunnels are arranged in a cross pattern, with two pairs aligned along an east-west axis and two along a north-south axis. Also, the larger openings face the summer sunrise and sunset. The smaller openings face the winter sunrise and sunset. Holt drilled small holes in the tunnel walls as well — 2,000 of them, actually — which let light stream into the tunnels in patterns that create a star map on the interior surfaces when the sun is directly overhead And that's really what it comes down to..
The site is about 150 miles northwest of Salt Lake City, near the small town of Lucin. The tunnels sit on public land managed by the Bureau of Land Management, and you're free to visit, but there's no infrastructure to support you. Now, there's no visitor center, no parking lot, no signs. Day to day, bring water. Consider this: bring sun protection. Which means you have to know where you're going. Tell someone where you're going.
Best Times to Visit
The most dramatic experience is during the solstices. That's why on the summer solstice (around June 21), the sun rises through the east-facing tunnel and sets through the west-facing one. On the winter solstice (around December 21), the alignment flips. If you're there on those days, you can watch the sun perfectly framed in each tunnel — a deliberate, engineered moment that Holt spent months planning But it adds up..
But the tunnels are worth visiting any time. In real terms, the desert landscape is stark and beautiful, and the scale of the concrete cylinders is more imposing than photos suggest. You can walk through them, sit inside them, trace the small holes in the walls with your fingers. The piece changes with the weather, the time of day, the season. It's never the same twice.
Common Mistakes People Make
Most people think of Sun Tunnels as just a photo opportunity. And sure, the photos are striking — the contrast between the rough concrete and the endless sky is genuinely beautiful. Which means they drive out into the desert, snap a few pictures of the tunnels with the sky behind them, and leave. But that's not really what the piece is about No workaround needed..
The mistake is treating Sun Tunnels like a monument you check off a list. But it's an experience that asks you to slow down, to wait, to pay attention to light and shadow and the passage of time. It's not a statue you stand next to for a selfie. If you rush through it in thirty minutes, you'll have seen the tunnels but missed the artwork.
Another mistake: visiting without understanding the solstice alignments. On top of that, a lot of people show up on a random Tuesday in August and wonder why the light isn't doing anything special. The piece is designed around specific astronomical moments. Knowing that changes how you see it.
People argue about this. Here's where I land on it.
Practical Tips for Visiting
If you want to actually experience Sun Tunnels the way Holt intended, here's what works:
- Plan around the solstices if you can. The summer solstice is the more accessible option — the weather is better, the days are longer, and you have more time to spend at the site. Bring a blanket and sit inside one of the tunnels while you wait for the sun to align.
- Go at sunrise or sunset even if it's not the solstice. The light at those times transforms the tunnels. The concrete catches the warm color, and the shadows inside the cylinders shift dramatically.
- Spend at least a couple of hours there. Don't rush. Walk around the entire site. Look through the small holes in the walls. Notice how the tunnels frame different parts of the landscape depending on where you stand.
- Bring everything you need. There's no water, no bathroom, no shade. The desert is unforgiving. Be prepared.
- Go at night if you're adventurous. The small holes in the tunnel walls make the interior surfaces look like star charts when you shine a flashlight through them. Some visitors bring lanterns and camp inside the tunnels. It's a completely different experience — eerie and quiet and strange.
FAQ
What type of art is Nancy Holt's Sun Tunnels? Sun Tunnels is an example of earthworks art, also known as land art or site-specific art. It's a large-scale sculpture integrated into the natural landscape, designed to interact with its environment and the passage of time.
Where is Sun Tunnels located? The artwork is in the Great Basin desert near Lucin, Utah, about 150 miles northwest of Salt Lake City. It's on public land managed by the Bureau of Land Management, with no visitor facilities.
When was Sun Tunnels created? Nancy Holt completed Sun Tunnels in 1976. It was commissioned by the University of Utah's Art Museum as part of a program to place contemporary art in public spaces.
Why are the tunnels aligned with the solstices? Holt designed the orientation so that during the summer and winter solstices, the sun rises and sets directly through the tunnels. This transforms the static concrete cylinders into a functioning astronomical observatory that marks the changing seasons.
Can you visit Sun Tunnels year-round? Yes, the site is always accessible. That said, the most dramatic light effects occur around the summer and winter solstices. The remote desert location requires careful preparation regardless of when you visit.
Nancy Holt died in 2014, but Sun Tunnels remains exactly as she built it — four concrete tubes in the desert, waiting for the light to align. It's a monument to patience, to attention, to the idea that art can be something you go toward rather than something that comes to you. It's not a monument to her, exactly. And if you make the trip, if you sit inside one of those tunnels and watch the sun trace its path across the sky, you'll understand why people call it one of the most important works of land art ever created. That's why it's not just a sculpture in the desert. It's a reason to look up.
