Photo: New Hampshire… Rocks!!!

Madison Boulder

huge glacial erraticIn the “list of odd things I’ve seen but never expected to” category, I am now including this rock.  It is the Madison Boulder, located innocuously off a stretch of road and hidden in the forest so you don’t really see the thing until you suddenly find yourself almost right in front of it.  And when you do it seems a bit crazy that something so very big and impressive could be hiding out in the forest without you knowing about it.  What is the biggest rock I’ve ever seen doing in the middle of the woods?

It turns out the Madison Boulder is a glacial erratic- one of the biggest in the world, in fact, with an estimated weight of 4,662 tons (though- warning, geek joke- such a precise number made me question the sign maker’s significant figure usage…).  About 25,000 years ago during the last Ice Age the entire region was covered in a giant sheet of ice more than a mile thick, which carried along boulders big and small which were made smooth by the constant pressures, but as anyone who has visited the area knows many of these were then left behind during the glacial retreat (along with a few thousand glacial lakes).  The Madison Boulder just happens to be the very biggest in all of New England.

And I know I must say this a lot guys, but science is so cool.  For thousands of years after the Ice Ages people surely stumbled across this rock wondering what on Earth it was doing hiding in the middle of the forest, but we are lucky enough to not have to wonder!  And frankly a giant sheet of ice a mile high stretching thousands of miles is probably way cooler than anything you could think up as a credible answer anyway…

One response to “Photo: New Hampshire… Rocks!!!

  1. You “rock”!

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