A couple of mountain ranges east of the famous Mount Whitney of the Sierra Nevada is the 14,252-foot (4,344 meters) White Mountain Peak, just 253 feet (77 meters) lower than Whitney, but a world apart. This is not a jagged granite spire like those of the Sierra, but a craggy mix of rock types that is far easier to ascend. Along the way you can see the Earth's oldest living things -- the trees of the bristlecone forest at between 9,200 and 11,500 feet (2,800 to 3,500 meters).
To reach this summit you need only hike 14 miles (23 kilometers) round trip, from the locked gate about 2 miles before Barcroft station. The climb is less than 2,600 feet (800 meters), but at such high elevation, be sure you're ready for the thin air.
A good place to get more info is Wikipedia: http://en.wikipedia.org/wiki/White_Mountains_%28California%29.