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Mary Lou Fairweather, Flagstaff-based forest pathologist for the Forest Service, stands in front of a grove of aspens to discuss about some of the problems facing the trees. (Cronkite News Photo by Stephen Hamway)

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Tease photo

Aspen decline in northern Arizona leaves forestry officials searching for answers

By some measures, aspens are the largest organisms in the world, as entire groves spanning thou-sands of trees can be interconnected through elaborate root systems.

Tease photo

Aspen decline in northern Arizona leaves forestry officials searching for answers

By some measures, aspens are the largest organisms in the world, as entire groves spanning thou-sands of trees can be interconnected through elaborate root systems.