WA is like a small, accessible, less-snowy, not as dramatic version of AK. We have glaciers. Specifically, we have maritime glaciers (glaciers plus nice forests). CO & CA have rocky peaks and nice forests, but they don't have glaciers or peaks/forests/glaciers together.
This is what passes for a glacier in Colorado:
We also have decent/good cragging, alpine rock climbing, a little bit of water ice, alpine ice, some backcountry skiing, etc, but other places in the contiguous US beat the shit out of WA in those categories.
To sum up, we have this: