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Every tag has a purpose

Apr 24, 2026 09:00AM ● By Allison Eliason

We see lots of cattle.

Cattle on the range.

Cattle on the ranch.

Cattle at the sale.

Cattle. Cattle. Cattle.

We see a lot of cattle.


We see lots of tags.

Blue tags. Red tags.

Tags with numbers.

Tags with letters.

Tags with numbers and letters.

Tags with no letters or numbers.

Tags. Tags. Tags.

We see lots of tags.


It almost reads like a Dr. Seuss book, doesn’t it? A little silly, a little rhyming, a little repetitive. But underneath all the fun, there’s a lot of truth: every tag has a purpose, even if it isn’t obvious at first glance.

We see all types of cattle with all kinds of tags, and with the many cattle, tags, and ranches out there, I’ve learned no two operations use that information the same way. My little observation sparked a small debate in our household about the “best” way to use tags. Somewhere along the way, someone—not me—said, “Why even have tags if you don’t put your name on them?”

That’s when I realized we were coming at it from two completely different angles.

At the core, tags are about information. But who that information is for, and why it’s on there, is what determines what kind of information is there.

Growing up on a seedstock ranch, tracking genetics and bloodlines was an everyday thing. We wanted to know, with just a glance at a tag, the history of that animal. Different colors meant different breeds. Not only did it have the calf’s own identifying numbers, but also its sire, dam, and birth year. That tag carried a lot of information, but only we knew what it meant.

As our cattle are out on the range calving, trying to record all of that same data is pretty impossible.  While we brand and tag, we are content to simply identify them as belonging to our operation. That tag merely helps people to see that it is ours, so long as they recognize the tag color. And even if they don’t recognize that, the back of each tag has contact information in the event that our livestock wander through a fence or crosses into another herd. Of course they have to get up close and personal to see it, but it’s there.

Every year our favorite vet comes through to test our herd bulls, putting a new tag in them each time. That tag signifies to us, and anyone else that sees it, that the bull has been tested and cleared for use,  But the numbers on his tag mean nothing in our books. The vet, however, keeps a record and the data on that tag is crucial to his files.

Feedlots that are constantly buying and selling calves use tags for a whole other purpose- traceability. Being able to quickly pinpoint where a batch of animals came from in the event of sickness or other outbreak is a must.. Having their tags marked helps them to spend more time taking care of the problem than sorting through papers for that information.

Sometimes the information on a tag isn’t even a number, letter, or symbol at all. A notch on the inside or a hole punch in the top can tell a rancher what ear it was born in, if it was doctored, or who its sire is. I didn’t say that all ways and methods were what you would consider conventional.

Even after those tags have been pulled or fallen out, they still carry a lot of information. They tell a story. My little boys have a collection of tags they just can’t give. Some are from the cattle they pulled them from- new cattle we bought or favorites cows that died- or the places they found them at- the auction, the sheep trough on the range, or the loading chute in the desert.

You see, it’s not just what’s on the tag—it’s who’s reading it. To one person, a jumble of letters and numbers; to another, it’s a guide for sorting, breeding, or tracking health history.

That’s what makes tags fascinating—they carry data, but also meaning. The same numbers or colors could mean entirely different things depending on who’s looking. For us, they’re memory. For the vet, medical records. For someone else, random symbols.

At the end of the day, tags are functional, personal, and occasionally mysterious. They don’t tell the full story alone—but read through the right lens, they carry everything a rancher needs. And sometimes, that’s all the story you really need.