I’m feeling a little bogged down by the news, and sometimes it’s helpful to combat that by looking into the history books. Sometimes that makes it worse — so you turn to the history of rocks instead. Here’s a quiz about the geological and geographic history of our area, to get your head out of the present for a few minutes!
How Well Do You Know Idaho's Geological History?

Blake Hunter
What are a large swath of Idaho’s mountains made of? (David Radzieta / Getty)
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Thank you Boise, we’ve loved the conversation we’ve been having with you for the past three years. City Cast Boise and Hey Boise have suspended operations. Our last newsletter and podcast episode was Oct. 24, 2025.
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