Hi Paul. Regarding "Instead, when the trail descends to a ravine (4,760 ft), leave it and continue NE up the draw. The draw arcs around to the right (around Cave Ridge). A faint boot path may be recognizable in the draw (left of the stream). Water is available year round in the stream."
I descended this draw yesterday and there is not a drop of water to be found anywhere. There's also not a drop of water to be found lower down where the trail crosses the "stream" near the waterfall. The entire "stream" is completely dried up.
30 years ago, I did the North Peak of Guye, Lundin, then Snoqualmie in snow. Finally, I went back and did the (higher) South Peak of Guye.