Alaska, part 2

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More of Alaska. One thing we noticed about driving around Alaska - there are “bumps” in the road; in Alaska, which are known as “frost heaves,” an “upward swelling of soil during freezing conditions caused by an increased presence of ice as it grows towards the surface, upwards from the depth in the soil where freezing temperatures have penetrated into the soil” (https://en.m.wikipedia... Read Full Entry

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