4) Most astounding is that there is a region of Alaska, Kobuk Valley National Park, north of the Artic Circle, which has “Undulating golden sand dunes as far as the eye can see.”
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I checked on the satellite map and it’s a small area compared to the rest of the state, about 25 square miles.
Deserts are found on the lee side of high mountains and rain is rare because of the rain shadow effect mountains have on lower elevations.