1. The Geology of Washington State

2. Why Geology?
The fundamental base (particlularly in this region) for climate, weather, soils, biology, topography, etc…
As such, it has major implications on the “human” characteristics/use of the basin.

4. Pre 100ma

11. ~50ma

13. Western Cascades Volcanism Up to ~25ma

17. Topography. Note OWL.

25. Glacial Lake Missoula 16000 years ago Ice dam broke
Massive flooding, erosion, and deposition

27. And the Wrapup Geology is key to understanding the region:
Weather and climate
Biology, landuse, agriculture, etc
Hazards and risk
Volcanos
Earthquakes
Land/mudslides
Flooding
Mining
Logging (plant distributions, accessibility)

28. https://washingtonstategeology. wordpress
nice little animation.