They start not far beyond Stony pass. Not to worry though, the trail is easy enough to follow, especially with GPS. For the most part the trail is well defined and good riding, at least if you've got any power at 13k'. There are short sections with little trail to no trail but those huge cairns can be seen for miles.
I just rode 22/23 with LW as a 2 dayer (loop via cinnamon), it's in perfect shape, flowers absolutely unbelievable right now. If you are lucky enuf to hit it in daylight and good weather you'll carry a smile all the way to Denver.
We were passed on Cinnamon by Brian Smith and friends who did the same loop as a ~ 11 hour day ride. Freaks! I still can't breath over 10k' LOL.
FYI - there is very little *good* water on seg 22. In the traditional direction, the first good water source is about a mile past Coney summit. There is a small creek before you leave the trees, but it currently has about 1000 sheep grazing on it. The sheepherder was coming down as we were going up and he told us in a thick accent "sheep, no problem!" several times. There's no shortage of water on 23. I look forward to reports of the fun factor of climbing stony pass, that is one steep road!
It was interesting to me that "low" elevation ended up at 9000-11000 feet and that I had little power in these sections. I was okay to hike, but it took 14 hours to cross those sections in S to N direction. Definitely fill up at that stream before summit to Spring Creek Pass. Lots more water in section 23 than 22. The climb up Stoney Pass might be a never-do-again for me. Racers, enjoy that downhill!
