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Road Trip pic of the day, 7/10: What is it? Who made it?

This artwork is in Utah, near the Nevada border. For today's Road Trip picture of the day challenge, be the first to tell me what it is and who the artist is, and you win a prize.

For today's picture of the day a prize for being the first to name this art project and the artist. Daniel Terdiman/CNET

Update (9:04 a.m.): We have a winner. It seems that many people knew of, or had visited, Nancy Holt's "Sun Tunnels," close to the town of Lucin, Utah. It also seems that the hints provided and/or Google may have made this one a little too easy. Stay tuned for tomorrow's Road Trip picture of the day challenge.

BOISE, Idaho--If only I'd known, when I began Road Trip 2009 nearly three weeks ago, that running a picture of the day challenge would elicit such a large response.

Over the last two days, I've posted two photos, one of an odd large yellow sphere in Arco, Idaho, and the other a Cold War era Bomarc B surface-to-air missile, currently housed at the Hill Air Force Museum near Ogden, Utah, asking my readers to identify them. I'm not sure if I've ever gotten so much e-mail. So, the picture of the day challenge continues.

Your task: be the first person to send me an e-mail--with "Picture of the Day" in the subject line identifying this art piece, and the artist who made it. I won't ask you to say where it's located, and I'll even give you one hint: it's in Utah, not far at all from the Nevada border.

If you have an answer, please e-mail it to me at daniel--dot--terdiman--at--cnet--dot--com. The first person with the right answer (including the name of the artist) wins a prize. Once I've identified a winner, I'll post an update with the answer.

Good luck.

For the next several weeks, Geek Gestalt will be on Road Trip 2009. After driving more than 12,000 miles in the Pacific Northwest, the Southwest, and the Southeast over the last three years, I'll be writing about and photographing the best in technology, science, military, nature, aviation and more in Idaho, Wyoming, Montana, South Dakota, and Colorado. If you have a suggestion for someplace to visit, drop me a line. And in the meantime, join the Road Trip 2009 Facebook page and follow my Twitter feed.