Winter continues to hold us fast in its embrace. Some of us may be looking forward to the coming spring when days get longer and the snow melts away, but for some members of our environment, the long ...

High atop the remote, rocky slopes of California's White Mountains, the harsh conditions make it difficult for life to take root. But for a certain type of tree – and for those who have traveled here ...

BISHOP, Calif. — Forest pathologist Martin MacKenzie strode forward on a narrow path through California’s mythic bristlecone pine forest in the White Mountains near the Nevada border, methodically ...

The oldest tree species is the Great Basin bristlecone pine (Pinus longaeva). The oldest tree of the species is named Methuselah and is more than 4,800 years old. The longevity of the Great Basin ...

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 ...

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 ...

Hidden high in the White Mountains of eastern California, a gnarled, weathered tree quietly holds a staggering secret — it'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 ...

In 1964, graduate student Donald Rusk Currey asked for permission to cut down a tree growing on Wheeler Peak in Nevada's Great Basin National Park. Though there are different accounts on the ...

CLEAR CREEK COUNTY • High on the craggy shoulders of Mount Evans, above 11,500 feet where the spruce and fir no longer prevail, an exclamation is heard. Observes one in a group visiting from ...

11:07 a.m. June 29, 2022: A previous version of this story misspelled Constance Millar’s first name. Forest pathologist Martin MacKenzie strode forward on a narrow path through California’s mythic ...