The descent from Chilcoot Pass is beautiful but requires your full attention to navigate the sometimes steep and rocky trail. Soon Lower Siamese Lake will come into view. The trail drops steadily with sharp switchbacks down to the lake. Take a break at the lake and maybe a swim.
Cross the outlet of the lake and climb a short, steep section before resuming the descent. The trail descends steeply with some traversing and short, interspersed climbs eventually reaching the marshy Foley Basin meadow. Take a left on the far side of the meadow and then shortly reach the West Fork Fish Creek #101.