How the Pacific North West was Formed

I learned a lot about how the area we live in was created.

The movement of tectonic plates formed the land, glaciers and floods carved it out.

The Washington coast range and  ranges down to north California were formed when the Juan de Fuca plate went under the north american plate. Lots of sediments got squished together to form the land and the mountains.

Glaciers are rivers of ice that can be very large. Some miles thick and thousands of miles wide.
Glaciers carved the earth as well as created large lakes that would build and then the dam would break also shaping the land and leaving fertile ground.