Proceed up the valley to Headlee Pass. The most common route-finding problem
is failure to identify the correct pass. It is very near (but not quite at) the
upper end of the valley.Sperry is almost as good a climb as Vesper, and can be easily combined with Vesper for a two-peak day.
Find the Sunrise Mine Road and drive to the trailhead at the end of it.
Follow the trail through woods, across a small river, and then up a brushy hillside. Eventually the trail will cross over into a hanging valley.
Proceed up the valley to Headlee Pass. The most common route-finding problem
is failure to identify the correct pass. It is very near (but not quite at) the
upper end of the valley.
Climbing to the pass is difficult. Expect either steep snow or loose, sandy soil. From the pass you can see Vesper.
On the other side of the pass, the trail descends slightly before crossing around Sperry. Then it ascends again and reaches the end of a hanging glacial cirque.
At the lake, traverse around the right side. Head up to the saddle between Vesper and Sperry. Then run the ridge following a path. Eventually the path seems to fade out but there are lots of branches to hang on as you scramble your way to the summit.
Return to the saddle between Vesper and Sperry.
It is possible to continue to Vesper. Otherwise, descend the climbing route.