syncline

Devil’s Punchbowl: sandstone formations warped by San Andreas Fault

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North of Los Angeles lies a striking sandstone outcrop known as the Devil’s Punchbowl. I’d seen it before from the air— it’s right where the Transverse Ranges of Southern California give way to the Mojave Desert, directly adjacent to the San Andreas Fault. But it was not until this year that I finally had a … Read more

Flying over the northernmost mountains: Alaska’s Brooks Range and Gates of the Arctic National Park

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Yukon River Alaska

In the winter of 2023, we traveled to the northernmost mountain range of the North American continent—the Brooks Range. The heart of this range lies within Gates of the Arctic National Park in Alaska. 1. Fairbanks to Bettles On the day of departure, the temperature was still below freezing, but the sky was perfectly clear. … Read more