Up in northern New Jersey is Pyramid Mountain, a trek up which yields a pretty amazing sight: Tripod Rock, a “glacial erratic” – a 160 ton boulder, to put it in simpler terms – abandoned by the receding Wisconsin glacier. What makes this massive rock amazing is that it is perched atop three comparatively tiny rocks, and this seemingly impossible arrangement has survived thousands of years.

On the left is a photograph of it, taken by me (click on the image for a larger version). Even to an amateur like me, it is evident that this is not a great photograph – among other failings, it is low on detail and sharpness. It has however one thing going for it on the photo sharing service Fotopedia: it is the only photograph of Tripod Rock that has been submitted to the site.

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