If you thought the ancient evergreens at California's Big Basin Redwoods State Park were old, the state's bristlecone pines make these old-growth trees look like saplings. Hidden within Inyo National ...

Picture of the bristlecone pine forest in California, the United States where the bristlecone pine sample for this study used to live (taken by Prof. A.J.T. Jull). In this forest, there are many ...

While California has plenty of natural wonders to share, the state's epic mountain ranges stand out above the rest (literally). For example, the Sierra Nevada region contains monumental wonders like ...

Deep in the dark woods southwest of Fairplay, federal logging crews tasked with tree thinning to protect homeowners against megafires and restore forest health must watch out: make sure not to cut ...

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 ...

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 ...

The 4,853-year-old Great Basin bristlecone pine tree known as Methuselah grows in the Ancient Bristlecone Pine Forest in the White Mountains of Inyo County. (Tayfun Coskun / Anadolu Agency) Scientists ...