Any concern re: rattlesnakes at Catalina State Park, Tucson?

Well, this is the desert. One must remember that almost everything here wants to sting, stick, bite or kill you. other than that it's great. have seen snakes all over but they prefer to avoid you. Keep the dogs on a leash and use a flashlight in the dark. It's a beautiful park and we go there to hike all the time.

Dave