“Window Peak Lake” is a spectacular granite-encased lake tucked in underneath rugged Window Peak. While only a couple miles off the John Muir Trail, there is no trail or use paths to negotiate the 1,800 foot vertical ascent to the lake which is steep and rocky. The lake is also situated in one of the more remote spots in the range with all access options entailing many trail miles and lots of elevation gain. The lake is not officially named on any maps, but its proximity directly underneath Window Peak makes Window Peak Lake an appropriate unofficial name. The difficult accessibility combined with very little information on this region makes this a pristine and unfettered setting with virtually no human impact. I hope places like this stay that way and in future years I hope to find the same unspoiled setting!
Erica and I accessed the area via Road’s End passing by Mist Falls and then running up Paradise Valley and the Castle Domes to the John Muir Trail at the Woods Creek junction. After some photographs on the suspension bridge we continued northbound up the JMT for one mile before turning off and heading up the rocky and steep slopes. The general idea is to stay on the north side of the stream draining Window Peak Lake ascending talus, steep meadows and the occasional patch of pine trees. Virtually all brush can be avoided with careful navigation. A headwall is passed about halfway up where the outflow water from Window Peak Lake tumbles over a cliff producing a waterfall that is surely impressive in the early summer when snows from above are melting. Prior to reaching Window Peak Lake there is a smaller lake, aka mini-Window Peak Lake, but be sure to continue up to the much larger and scenic main lake. After a short break at Window Peak Lake, I continued up along granite slabs to Pyramid Peak. Most of the route is on friendly slabs with only a little bit of talus to negotiate. A small col must be gained to ascend the south ridge of Pyramid Peak that includes some class 3 scrambling. The summit of Pyramid Peak features an outstanding view looking south to the King Spur, Window Peak, Rae Lakes and a sea of peaks all around. Mount Whitney, Mount Williamson and Mount Tyndall are clearly visible to the south along with the Palisades to the north. The descent from Pyramid Peak was just as spectacular as the afternoon sun angle produced a beautiful blue color on Window Peak Lake. This view was one of my favorites in all of my adventures in the High Sierra. I met up with Erica at mini-Window Peak Lake and we continued down together to the JMT enjoying the stupendous views of the Woods Creek drainage up to the peaks surrounding the Rae Lakes including Painted Lady, Mount Rixford and Dragon Peak. Once on the JMT, we continued on to the Castle Domes valley where beautiful afternoon light illuminated the impressive granite towers. GPS route here.