Yep, there's a ton of it to be found especially in the Columbia River Gorge. For anyone not hip to Nick Zentner, allow me to introduce you to this national treasure...
replyhttps://www.youtube.com/watch?v=VQhjkemEyUo
It's rare to have basements where I live in Bend, because it's all lava rock right under our feet, which is really expensive to remove.
replyClimbing on columnar basalt is interesting. Vantage / Frenchmans Coulee (2 hours or so east of Seattle) has a bit of a bad reputation but some of the routes are decent.
replyPilot rock outside of Ashland you can even hike to the top
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