They're some of the most famous longhorns in the world, known as The Herd, they've even appearing on TV.
The world's only twice daily cattle drive is celebrating ten years in the Fort Worth Stockyards.
On Saturday residents were invited to bring their horse and join in the cattle drive along the Trinity River and Exchange Avenue.
This year, a 16th steer was added to The Herd, to commemorate the anniversary.
The Fort Worth Herd was established in 1999 by the City of Fort Worth to celebrate its 150th anniversary and serve as ambassadors for the city.
Since its inaugural cattle drive in 1999, the Fort Worth Herd has become the single most recognizable symbol of Fort Worth's rich western background.
Driven twice daily down East Exchange Avenue by genuine cowhands, the Fort Worth Herd offers spectators around the world an authentic glimpse into history.
"In its first ten years, the Fort Worth Herd has introduced our city's history and attractions to millions around the world," says Judge Steve M. King, President of the Outriders. "They have far surpassed our expectations when we started the program in 1999 to celebrate the 150th anniversary of Fort Worth's founding."