Introduction: What? : The 15 miles out and back White Mountain Peak hike will take you to the third highest peak in California (14,252 ft). The hike is tough (overall 3,500 ft elevation), but doable, and will take you through a rugged and beautiful mountain desert. The summit of White Mountain Peak offers great 360 views from the Eastern Sierras California to Nevada mountains. On your way to the hike trailhead, you will enjoy visiting the Ancient Bristlecone Forest groves, some of the trees are up to 5000 years old.