The Ancient Bristlecone Pine Forest is a protected area high in the White Mountains in Inyo County in eastern California. The Great Basin bristlecone pine (Pinus longaeva) trees grow between 9,800 and 11,000 feet (3,000-3,400 m) above sea level, in xeric alpine conditions, protected within the Inyo National Forest. Limber pine (Pinus flexilis) also grow in the forest.