Aspen declines are also underway in Wyoming, Utah and elsewhere in the Rockies ... which in turn form oozing bruises under the bark. On another tree, Worrall finds small cracks like those on ...

Think of a tree and what comes to mind ... identical to the others. The most famous example of a clonal grove is Pando, a grove of quaking aspen in Utah's Fishlake National Forest.

Populus tremuloides, the quaking aspen of the North American continent, stands as one of the most easily recognized, most beautiful and most admired of all tree species. In order to help ...

Utah, of course, is home to its famous "Mighty Five" national parks ... Utah's Fishlake National Forest is home to the ancient clonal Pando aspen tree that may be the oldest living thing on ...