Where in Zion National park can I go with my dog?

I was warned one day at the lake while working my dog by the rangers to be careful a couple of days earlier a mountain lion came down from the hill & on a fairly crowded beach took a families dog!

I assume it was a smaller dog, a mountain lion would have a fight on its hands trying to take my dog.

So there are always issues.

Oh & yes the rangers were fine with my dog off lease at this beach where there were no people at all but us, he just wanted me to be aware of the danger.