510 BCE: Rising from a mountain’s shallow soil, a bristlecone pine begins its life. This Rocky Mountain bristlecone pine is one of the oldest trees in the world, only outlived by its cousin the Great ...

The Rocky Mountain bristlecone pine is famous for its longevity. The oldest known living specimen, near Pikes Peak, is 2500 years old. Native to Colorado, Bristlecone pines grow in some of the state’s ...

Late-summer storms hurl hail against the granite slope. The dawn air freezes all but six weeks of the year. There is no sign of soil. But on this lonely ridge, the oldest known tree in the Pikes Peak ...

Of the 110 or so pine species, three cousins classified as foxtail pines live for thousands of years and hold many answers to anti-aging. Great Basin bristlecone pine (Pinus longaeva), Rocky Mountain ...

The world's oldest trees were growing when the Great Pyramid of Giza was being built and were already thousands of years old when Julius Caesar came to power. To determine a tree's age, scientists ...

The next time you drive up the Mount Evans Scenic and Historic Byway, the highest paved road in North America, be sure to stop at one of its most interesting, but least-known, attractions: a grove of ...

While the aspens and cottonwoods have lost their leaves in preparation for winter, Colorado’s slopes still thrive with an abundance of evergreen conifers. One pine stands out in a few isolated ...

Bristlecone pines are found in six western states, but the oldest are in the Ancient Bristlecone Pine Forest. Scientists have discovered three types of bristlecones. Those in the White Mountains are ...

The past two decades have been hard on the West’s conifer forests, which have seen wave after wave of bark beetle epidemics turning once green landscapes brown and gray. The world’s most long-lived ...

Editor’s note: This story has been updated to correct the status of pine beetle activity in the described area. Addtionally, the identity of the person featured in the accompanying photograph has been ...