Z - It was about 16 miles--- 8 each way. But I lost the trail early just past Saddle Junction... I ended up on the Caramba trail, but it rejoined
Willow Creek trail after a little.
The trail was more distinguishable coming back from the tram. It disappeared in Skunk Cabbage meadow, but by then I was only a 1/2 mile or so from
Saddle Junction.
The funny part was I met a couple in the morning looking for the trail, and on my way back I asked some campers if they new exactly where the trail was --- and it was the same couple. They pointed me the right way.
This trip seems like it can be added to Skyline, as long as the Skyline portion is not overly aggressive. The Willow Creek trail from the tram to Saddle Junction is mostly level, dowhill. You dont have to climb to Wellman's and then back down.
