You did notice the volcanic artifacts didn’t you?
Craters of the Moon. The Island Park caldera.
Yellowstone National Park. That 5 mile wide
ooze of lava on I-15 from mile post 100 to 105.
Lava Hot Springs. Just a few clues. Nearby Earthquake
Lake is worthy of a visit too.
No I did not. I drove from San Diego to my front door and never looked around much. I am in Northern part of Idaho.