> One report said it's about 15 minutes beyond Trail Crest when heading up, and there's a cairn and a faint use trail, but it's easy to miss.
That is the best way. Watch for it on your way up, and pick out the trail landmarks. I think just north of the Muir approach there is a thumb-like outcrop where the trail crosses a saddle between the outcrop (west side of the trail) and the main ridge (east side of the trail). If you can identify the place on your way up, you should be able to watch for it on your way back.
