A Day in the Canyon: Vertical Basalt Columns

Vertical Basalt Columns – Yakima River Canyon

A couple of miles up the road from my last post, I saw these basalt columns protruding vertically upward.  They were located on a different ridge.  The forces driving the uplift were different than the ones from the first ridge.  I ask why, what caused the difference? Did this ridge lift at a different time or were the forces just different from the ridge in the first post.  My curiosity kills me.  I think I need to do more research on how these “Yakima Folds” evolved.

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