The Southwest Harley Owners Group Rally is being held this weekend at the Bell County Expo Center in Belton.

The event, which began Thursday, wraps up Saturday with a performance by Houston-born rock band ZZ Top.

Organizers said Belton was an ideal location for the rally because of its proximity to Fort Hood, where riders were allowed to visit. More than 1000 bikers are attending the three-day event, and Military Reporter Jillian Angeline reports an estimated 90 percent of them are veterans representing all branches of the U.S. armed forces.

"The Army actually had Harley Davidson as their mail couriers on the battlefield," Wreath Riders President Lawrence McCullar said. "And, of course, a lot of these guys -- when they came back -- got out of the Army and just tend to appreciate the motorcycle."

On Friday, attendees participated in a scavenger hunt put on by the Harker Heights Chamber of Commerce and American Legion 573. Local organizers hoped the event taught visiting motorcyclists about Central Texas History by offering stops that included the Veterans Cemetery and Fort Hood Memorial in Killeen.