Start up the trail from Lake Sabrina to Blue Lake, and
onward to Moonlight Lake. Camp here or lower the first
night unless you are already well acclimatized. Then
proceed upward to Echo Lake and up and over Echo Col
(see upper photo; stay right, towards Clyde Spires).
Drop down to the lake on the other side. From that lake,
go east over a moderately steep ridge line, and then continue
east, traversing around the south side of Mt. Gilbert at around
11200'. There are good camp spots at 11200' before this traverse,
or at around 11600' after the traverse, near the base of Gilbert's
(very enjoyably skiable) southeast slope.
The ridge that drops southward from Mt. Johnson's southwest side
is probably the most challenging slope on the
tour. We were glad to have both ice axe and crampons for the
short steep finger of snow (visible in the
upper-left corner of the lower photo on this page)
that we used to ascend the ridge.