Oregon Field Guide
Tree Rings and Earthquakes; Avalanche Dogs; Wood River (33x1)
Ημερομηνία προβολής: Οκτ 14, 2021
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.
- Πρώτη προβολή: Φεβ 1990
- Επεισόδια: 174
- Ακόλουθοι: 6