A different hike in Yosemite is to drive to Tuolome (sp) Meadows (7,000+ feet), park your car and backpack to the three Young’s Lakes. The upper one is about 10,500 feet high as I recall (not too certain because it was in 1974). Stay there an extra day to build platelets and red blood vessels. Then hike cross-country to the north end of the park. Finally, hike south along the western trails back to Tuolome Meadows. Should take about eight days, but seeing the animals, the stars, the unbelievable views can’t be forgotten.
That sounds like a fantastic hike, Occam. I need to spend some time in the Sierra Nevada next summer.