Tree Rings and Earthquakes; Avalanche Dogs; Wood River (33x1)
Bemutató időpontja: 2021 Nov 14
Northwest scientists are using ancient trees to uncover the seismic history of the region. Anyone who's been to a ski resort, knows that the folks in red jackets are looking out for your safety. At Mount Bachelor, there's a special unit dedicated just to avalanche rescue--and the training starts young! Wood River Photo Essay.
