Yes knotts only runs steam on weekends during the off season.
Fun fact, the Galloping Goose at Knott's (#3) is the only one that has permanently left Colorado. All the others are still here in the state and the only one not original is #1. You have to appreciate Knott's is operating the goose for the reason it was built, to run service when a full size train isn't required. Case and point, slow weekdays during the off season.
I can say this Colorado would really like to have all the knotts stuff back lol.
you can watch this and see a lot of behind the scenes stuff with the railro