Jack Dykinga / Ponderosa Pine (Pinus ponderosa) pine cone and needles in the snow, South Rim, Grand Canyon NP, Arizona, 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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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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Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees and Mount Herard, Great Sand Dunes National Park, Colorado