What most refer to a Zuma is Deer creek, the end of the road. Obviously there are 4 different places to ride, on both sides of the road that could be referred to as "riding Montezuma".
Sts John no longer has parking (thanks to all the jackazzes who parked stupidly, and got that killed for us) I'm told the Chihuahua Gulch is no longer legal though I can find nothing about that being the case, and then the last one being Webster I BELIEVE is still legal, but access is an issue there too.