This is an archived article that was published on sltrib.com in 2016, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.
Riders on horseback are nudging bison on Utah's Antelope Island in an annual roundup of one of the country's largest and oldest public herds.
Utah State Parks workers kicked off the roundup, now in its 30th year, Saturday morning.
Hundreds of bison are being pushed into corrals near Whiterock Bay so they can eventually be given health checkups, vaccinations and even a small external computer chip to store health information.
The roundup continues to draw spectators ever year.
Park staff brought in bleachers for observers, live music and food for purchase.
Excess bison will be sold to make sure the available food resources can support the population.