They're celebrating the 100th anniversary of the Boy Scouts of America.
The four-day jamboree includes extreme sports, mainstream sports, a merit badge midway, a mountain man village, and that's just the tip of the event iceberg.
A Saturday night concert features the U.S. Air Force rock band, and Up With People.
The jamboree is open to the public from 12 p.m. to 10 p.m. Saturday, and from 9:30 a.m. to 12 p.m. Sunday morning.
