Erratic boulders are usually those carried by glacial action from one location to another. However, it is clear that no glacial action was involved in moving the large rock in the foreground of this image onto the smooth sandstone where is lies. The rock is large enough that it would take more than a few people to pick it up and carry it to the top of the sandstone ridge. The patterns of erosion in Kodachrome Basin are so complex that I suppose anything might be possible but I was intrigued by this solitary rock.
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