Kirk Siegler for NPR
A dying stand of aspens near the Vail Ski Resort
A dying stand of aspens near the Vail Ski Resort Kirk Siegler for NPR
A symbol of the American West, the aspen tree, is dying quickly and mysteriously. Scientists are scrambling to get to the causes of the epidemic, which is threatening mountain communities that depend on the famed trees natural beauty to draw tourists. Aspen Public Radio's Kirk Siegler reports.