Friday's postcard, and a modest buffet of basalt
November 9, 2023
Hat Rock at its perch near the Columbia River east of Umatilla, Oregon. A creation of the Pomona member of the Columbia River Basalt Group, it features some of the thinnest basalt columns (about the thickness of a baseball bat) and a mention in Lewis & Clark’s journals, from October 1805. “(A) rock on the Lard. Shore resembling a hat” William Clark note…
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