Don't remember the date but have ridden it about a half dozen times. My favorite way is as a loop with Sulivan Canyon although the ridge and Rustic Canyon makes a nice loop as well. Ahh, the good old days. Got a warning from a ranger at the bridge one day as we rode down to it - the sign is worded strangely. If I remember right it says "Dismount and walk after bridge" or something like that. And for sure watch out for the poison oak in the "tunnel".