Jack Dykinga / Ponderosa pine (Pinus ponderosa) growing in Grand Staircase-Escalante National Monument, Utah, October 2014.
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Jack Dykinga / Ponderosa pine (Pinus ponderosa) against a star filled sky with a brilliant Milky Way. Zion National Park, Utah, USA, September.
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Jack Dykinga / Bark patterns of Aspen tree (Populus tremula) in front of a Ponderosa pine (Pinus ponderosa) trunk, Kaibab National Forest, Arizona, USA
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Floris van Breugel / Ponderosa pine (Pinus ponderosa) grove at twilight under a heavy snowfall, Deschutes National Forest, Oregon, USA. December 2009
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Floris van Breugel / Ponderosa Pine trees (Pinus ponderosa) coated in frost, during heavy snowfall, Deschutes National Forest, Oregon, USA, December 2009
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Jack Dykinga / Lone Ponderosa pine tree {Pinus ponderosa} in front of canyon walls showing drip mark fractures, Long Canyon, Grand Staircase-Escalante National Monumnet, Utah, USA
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Jack Dykinga / Silhouette of lone Ponderosa pine on a sandstone spire at dusk, with crescent moon, Zion National Park, Utah, USA
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Donald M. Jones / Chestnut-backed Chickadee (Poecile rufescens) on Ponderosa Pine (Pinus ponderosa) cone, western Montana
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Jack Dykinga / Snow covered Ponderosa Pine (Pinus ponderosa) branches with North Rim in the Background, Grand Canyon NP, Arizona, USA
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Jack Dykinga / Ponderosa Pine (Pinus ponderosa) pine cone and needles in the snow, South Rim, Grand Canyon NP, Arizona, USA
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Jack Dykinga / Ponderosa pine cones {Pinus ponderosa} and drift wood amid canyon wall reflections in Death Hollow, Grand Staircase-Escalante, Utah, USA
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees with snow, Grand Canyon National Park, Arizona
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Jim Brandenburg / Ponderosa Pine (Pinus ponderosa) tree on prairie, Wind Cave National Park, South Dakota
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Jim Brandenburg / Black-tailed Prairie Dog (Cynomys ludovicianus) in burrow with American Bison (Bison bison) and Ponderosa Pines (Pinus ponderosa), Wind Cave National Park, South Dakota
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Jack Dykinga / Ponderosa pine (Pinus ponderosa) infront of petrified sand dunes with ephemeral waterfall after autumn rains, Grand Staircase-Escalante National Monument, Utah, USA. October.
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) tree and cliff, Grand Staircase-Escalante National Monument, Utah
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), El Capitan, Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead tree, with pitch tube, killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) new sapling with burned tree behind, Yosemite National Park, California
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Jack Dykinga / Moran Point with Ponderosa pine (Pinus ponderosa) and rock spires, Grand Canyon National Park, Arizona, USA.
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Jeff Foott / Dead White bark pine trees (Pinus albicaulis) killed by Mountain pine beetle (Dendroctonus ponderosa,) Grand Teton National Forest, Wyoming, USA. The current outbreak of mountain pine beetles has bee...
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Charlie Summers / Albino American red squirrel (Tamiasciurus hudsonicus) eating a pine cone from a Ponderosa pine (Pinus ponderosa) Taylor Park, San Isabel National Forest, Colorado, USA.
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Charlie Summers / American red squirrel (Tamiasciurus hudsonicus) albino with a Ponderosa pine (Pinus ponderosa) cone, Taylor Park, Colorado, USA, August.
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Charlie Summers / American red squirrel (Tamiasciurus hudsonicus) albino with a Ponderosa pine (Pinus ponderosa) cone,Taylor Park, Colorado, USA, August.
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees and Mount Herard, Great Sand Dunes National Park, Colorado
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees and Mount Herard, Great Sand Dunes National Park, Colorado
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Tim Fitzharris / Quaking Aspen (Populus tremuloides) and Ponderosa Pine (Pinus ponderosa) trees in winter, Santa Fe National Forest, New Mexico
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Tim Fitzharris / Quaking Aspen (Populus tremuloides) and Ponderosa Pine (Pinus ponderosa) trees in winter, Santa Fe National Forest, New Mexico
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) tree and eroded rock formation, Kasha-Katuwe Tent Rocks National Monument, New Mexico
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) tree in slot canyon, Kasha-Katuwe Tent Rocks National Monument, New Mexico
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees in slot canyon, Kasha-Katuwe Tent Rocks National Monument, New Mexico
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees and cliff, Coconino National Forest, Arizona
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees, Mogollon Rim, Mazatzal Wilderness, Coconino National Forest, Arizona
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees, Mogollon Rim, Mazatzal Wilderness, Coconino National Forest, Arizona
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees, El Morro National Monument, New Mexico
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) and Bigtooth Maple (Acer grandidentatum), Utah
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Floris van Breugel / Arrowleaf balsamroot (Balsamorhiza sagittata) flowers in bloom on slope with Ponderosa pines (Pinus ponderosa) Eastern Washington, USA, May 2014.
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Chris Mattison / Ponderosa Pine (Pinus ponderosa) branch silhoutted against sunset, Sierra Nevada, California, USA, May.
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Floris van Breugel / Ponderosa pines (Pinus ponderosa) in winter snow, near Sisters, Oregon, USA. December 2009.
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Donald M. Jones / Western Bluebird (Sialia mexicana) male in Ponderosa Pine (Pinus ponderosa), Montana
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Glenn Bartley / Pinyon Jay (Gymnorhinus cyanocephalus) perching on a Ponderosa Pine (Pinus ponderosa), Oregon
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Jouan Rius / Ponderosa pine (Pinus ponderosa) on a sandstone tower, Zion National Park, Utah, USA November 2012
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Jouan Rius / Eroded patterns in Navajo sandstone with Ponderosa pine (Pinus ponderosa) on mesa, Zion National Park, Utah, USA November 2012
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Jouan Rius / Eroded patterns in Navajo sandstone with Ponderosa pine (Pinus ponderosa) on mesa, Zion National Park, Utah, USA November 2012
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Jouan Rius / Young Ponderosa pine (Pinus ponderosa) growing in sandstone tower, Zion National Park, Utah, USA December 2012
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Donald M. Jones / Pacific Tree Frog (Hyla regilla) hiding in Ponderosa Pine (Pinus ponderosa) tree bark, western Montana
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Mark Taylor / Ponderosa pines trees (Pinus ponderosa) Lassen Volcanic National Park, California, USA
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Jack Dykinga / Cardinal monkey flowers line sculpted canyon wall with fallen Ponderosa pine in background, Red Rock Secret Mountain Wilderness, Arizona, USA
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Jack Dykinga / Ponderosa pine tree (Pinus ponderosa) growing through eroded sandstone, Great Basin Desert, Zion National Park, Utah, USA
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Jack Dykinga / Ponderosa Pine trees growing amongst eroded claron rock formations sculpted into 'Hoodoos', Thora Hammer hoodoo in the foreground, Bryce Canyon National Park, Utah, USA
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Jack Dykinga / Ponderosa Pine tree growing amongst eroded claron rock formations sculpted into 'Hoodoos', Bryce Canyon National Park, Utah, USA
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Kevin Schafer / Ponderosa Pine (Pinus ponderosa), Sand Harbor State Park, Lake Tahoe, Nevada
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Kevin Schafer / Ponderosa Pine (Pinus ponderosa), Sand Harbor State Park, Lake Tahoe, Nevada
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Donald M. Jones / Lewis's Woodpecker (Melanerpes lewis) with insect prey at nest in Ponderosa Pine (Pinus ponderosa), western Montana
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Donald M. Jones / Townsend's Solitaire (Myadestes townsendi) singing on Ponderosa Pine (Pinus ponderosa), western Montana
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Donald M. Jones / Lewis's Woodpecker (Melanerpes lewis) at nest cavity in Ponderosa Pine (Pinus ponderosa), western Montana
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Donald M. Jones / Lewis's Woodpecker (Melanerpes lewis) at nest cavity in Ponderosa Pine (Pinus ponderosa), western Montana
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Donald M. Jones / Lewis's Woodpecker (Melanerpes lewis) at nest cavity in Ponderosa Pine (Pinus ponderosa), western Montana
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Donald M. Jones / Black-capped Chichadee (Poecile atricapillus) in Ponderosa Pine (Pinus ponderosa) tree, western Montana
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Thomas Lazar / Pine cones on dry needles at base of trunk of Ponderosa pine tree (Pinus ponderosa) Yosemite National Park, California, USA
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Thomas Lazar / Trunks of Ponderosa pine (Pinus ponderosa) (left) and Incense cedar (Calocedrus decurrens) (right) trees, lower montane forest, Yosemite National Park, California, USA
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Thomas Lazar / Pine cones on dry needles at base of trunk of Ponderosa pine tree (Pinus ponderosa) Yosemite National Park, California, USA
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Thomas Lazar / Bark of Ponderosa pine tree (Pinus ponderosa) Yosemite National Park, California, USA
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Thomas Lazar / Bark of Ponderosa pine tree (Pinus ponderosa) Yosemite National Park, California, USA
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Thomas Lazar / Bark of Incense cedar tree (Calocedrus decurrens) with younger cedars and Ponderosa pine trees (Pinus ponderosa) behind, Yosemite National Park, California, USA
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Jack Dykinga / Lone ponderosa pine (Pinus ponderosa) atop a sandstone pinnacle, silhouetted against the sunset. Zion National Park, Utah
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Michael Durham / American Badger (Taxidea taxus) in Ponderosa Pine (Pinus ponderosa) forest, Oregon
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) forest in snow, Grand Canyon National Park, Arizona
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Jack Dykinga / Lupin (Lupinus sp) flowering amongst Ponderosa pine (Pinus ponderosa) cones, near Tiyo Point, Grand Canyon NP, Arizona, USA
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Rolf Nussbaumer / Uinta Chipmunk {Eutamias / Tamias umbrinus} feeding on cones of Ponderosa pine (Pinus ponderosa), Rocky Mountain National Park, Colorado, USA
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Rolf Nussbaumer / Uinta Chipmunk {Eutamias / Tamias umbrinus} adult on bark of Ponderosa pine (Pinus ponderosa), Rocky Mountain National Park, Colorado, USA
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David Welling / Ponderosa Pine Tree bark. (Pinus ponderosa) USA Yosemite NP California
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Michael Durham / Ichneumon Wasp (Ophion luteus) flying. Photographed with a high-speed camera in an ponderosa pine forest canyon habitat, northeast Oregon
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Jack Dykinga / Snow covered Ponderosa Pines (Pinus ponderosa) with wall of Taft Point behind, Yosemite Valley, Yosemite National Park, California
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Jack Dykinga / View of Yosemite Falls amid fog with snow covered Ponderosa Pines (Pinus ponderosa) and the Merced River in foreground. Framed by Ponderosa Pine boughs, Yosemite National Park, California
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Jack Dykinga / Yellow monkey flower {Mimulus guttatus} and Ponderosa pine {Pinus ponderosa} growing beside water in Death Hollow, Grand Staircase-Escalante, Utah, USA
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees in prairie landscape, Black Hills, South Dakota
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees in prairie landscape, Black Hills, South Dakota
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) forest after fresh snowfall, Rocky Mountain National Park, Colorado
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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees after fresh snowfall, Rocky Mountain National Park, Colorado
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Jeff Vanuga / Northern Goshawk {Accipiter gentilis} immature roosting in Ponderosa Pine.
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Jim Brandenburg / American Bison (Bison bison) herd on dry grass prairie dotted with Ponderosa Pines (Pinus ponderosa), Wind Cave National Park, South Dakota
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Jim Brandenburg / American Bison (Bison bison) herd on dry grass prairie dotted with Ponderosa Pines (Pinus ponderosa), Wind Cave National Park, South Dakota
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Jim Brandenburg / Ponderosa Pine (Pinus ponderosa) trees in prairie landscape, Black Hills, South Dakota
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) trees and cliff, Grand Staircase-Escalante National Monument, Utah
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead tree, with black fungus, killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Half Dome, Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead tree, with pitch tube, killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead tree, with pitch tube, killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead trees killed by Mountain Pine Beetle (Dendroctonus ponderosae), Yosemite National Park, California
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Jeff Foott / Ponderosa Pine (Pinus ponderosa) dead tree killed by Mountain Pine Beetle (Dendroctonus ponderosae), Bridal Veil Falls, Yosemite National Park, California
