304 – Sierra Nevada and the Making of California

The mighty Sierra Nevada is our most important mountain range. It influences much of California’s weather and produces most if its water. It was once the greatest barrier to transcontinental transportation and communication. It is a symbol of earthquakes, which created it. Tectonic geologist Eldridge Moores helps host David Yetman decipher the mysteries of the range’s origins and describes the sierras’ importance.