May 10, 2007 / Boulder / A dead Ponderosa Pine Tree killed by bark beetles last year at Rocky Mountain National Park May 10, 2007.
Researcher Kiyomi Morino extracts a core sample from ponderosa pine on November 21, 2023 in Mt. Lemmon, Arizona. Morino researches cellular level...
Micro core extracted from ponderosa pine by researcher Kiyomi Morino on November 21, 2023 in Mt. Lemmon, Arizona. Morino researches cellular level...
May 10, 2007 / Boulder / A dead Ponderosa Pine Tree killed by bark beetles last year at Rocky Mountain National Park May 10, 2007.
View of covered railroad bridge over the Palouse River near Colfax in the Palouse, Eastern Washington State, USA.
Layers of history, including fire damage is revealed in the trunk of a ponderosa pine on November 21, 2023 in Mt. Lemmon, Arizona. Researcher Kiyomi...
Researcher Kiyomi Morino prepares micro-core samples from ponderosa pines on November 22, 2023 in Tucson, Arizona. Morino researches cellular level...
The reds and golds of autumn are on view in this image of Aspen trees and a Ponderosa pine on October 20 near Lee Vining, California. As the seasons...
Tall Ponderosa Pine tree burns in the forest around the Lee Valley Recreational area in the Apache National Forest during back burn operations as the...
Flames leap above the tree tops of tall Ponderosa Pine trees in the Apache National Forest during back burn operations as the Wallow Fire continues...
Flames leap above the tree tops of tall Ponderosa Pine trees in the Apache National Forest during back burn operations as the Wallow Fire continues...
