I remember this. I won’t say why because I don’t want to give up too much personal info on the internet.
It was Moses Lake, Washington.
https://www.mentalfloss.com/article/86829/8-evel-knievels-most-memorable-stunts#:~:text=In%201965%2C%20the%20motorcyclist%20performed,over%20a%20couple%20of%20lions.
“In 1965, the motorcyclist performed his first public stunt. He organized an event in Moses Lake, Washington featuring two mountain lions and a box of rattlesnakes.”
I spent a year there 60-61 SAC base.
Well, there cant be TOO many H3's in Illinois with those first five numbers on the license plate.