Gros Caillou is a landmark of the French city of Lyon in the neighborhood Croix-Rousse. The rock's mineralogical composition suggests it is a glacial erratic, and would have been transported from the nearby Alps by slowly moving glaciers.
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Wikipedia https://en.wikipedia.org/wiki/Gros_Caillou
Address 180 Boulevard de la Croix Rousse, Lyon 69001, France
Coordinates 45°46'28.393" N 4°50'6.017" E
