I spotted a geological benchmark on the train station in El Burgo Ranero, and decided to take a photo of it for my USGS friends. Then I spotted two more as we walked across northern Spain.
 El Burgo Ranero |  Somewhere in Leon |  On the Cathedral in Astorga |
Unfortunately, I didn't find any on the tops of the various mountains we climbed over. Not at the highest point we trekked over, but the sign below will have to do
On the way down from O'Cebreiro
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