FOP stands for Friends of the Pleistocene - I've been a "friend" of much much older geology for all of my geological career, so this was a new experience for me. Somewhere between 75 and 90 geology types from the USGS and various Universities gathered in southern Idaho for a 3 day geology and camping expedition. The characters, as one would expect, were diverse.
Naturally, despite the focus on the Pleistocene, I was drawn to the older, consolidated and crystalline rocks. There were lots. Unfortunately, they were all the same. Fortunately, they were cool columnar basalts from the Snake River Plain, which I happen to thoroughly enjoy.
These are holes left by a few plucked hexagonal columns from a "strath terrace" of the Snake River.
This is the view down Box Canyon, which was spectacular. Columnar basalts from numerous flows line the steep head-walled canyon, and there are two plunge pools filled by a natural spring sparkling in the center.
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