The Mt. Williamson Motel and Base Camp has a truly spectacular back yard — the Eastern Sierra Nevada, including Mt. Williamson, the second tallest peak in California. These images illustrate why John Muir called the Sierra Nevada the Range of Light. Most of these photos were taken in the past 16 months from behind the motel, almost all of them with an iPhone4. Some were taken on one of our favorite hikes, the trail from Onion Valley to Kearsarge Pass.