Extreme drought and bark beetles now threaten California's Ancient Bristlecone Pine Forest, home to Methuselah, a 4,853-year-old bristlecone pine.

Less than 15 miles from the fire, the Ancient Bristlecone Pine Forest contains trees that are more than 4,000 years old. The Patriarch Tree is the world's largest bristlecone pine tree.

This extraordinary tree has stood tall since long before the Pyramids of Giza were built, however, its exact location is a ...

Think you're getting old? Take a trip to the Ancient Bristlecone Pine Forest, on the Nevada-California border near Bishop, Calif., where the oldest tree is nearly 5,000 years old.