Four huge concrete tubes—18 feet long, nine feet in diameter—look like they belong at a big-city construction site, not out in the middle of the Utah desert. But artist Nancy Holt arranged them very specifically: On solstices, the tunnels line up with the sun at sunrise and sunset, and when the sun shines through the small holes drilled into the top of each tube, the constellations of Capricorn, Columba, Draco, and Perseus appear on the inner walls.
How to See It
The tubes lie about four hours west of Salt Lake City, near the town of Lucin and the Nevada-Utah border. All the usual caveats about traveling to remote desert sites apply: Bring everything (including water) with you. You can camp at the site, but there are no facilities.
More Desert Art
There are several other notable works out there in the Southwestern desert that aren't so accessible. A few—such as James Turrell's Roden Crater, Michael Heizer's City, and Charles Ross's Star Axis—are still under construction and strictly off-limits to outside visitors. Walter de Maria's Lightning Field relies on remote solitude for its effect, and so purposefully restricts viewers to a handful at a time. Others are hard to see just by virtue of being really hard to get to. (One guide to Heizer's Double Negative warns, "Without care, you can drive off the edge of the mesa, and … the tumble into the valley below will strongly decrease your chances of seeing the artwork.")