Friday, November 25, 2016

Nature/Geology Walk at Herrontown Woods: This Sunday, 1pm


This Sunday, we'll gather at Herrontown Woods to 1) be out in the woods on a brisk day and 2) learn something about the magnetite that's in some of the boulders and streams there. All are welcome.

A few years ago, one of our Friends of Herrontown Woods board members, geologist Jon Johnson, discovered that some of the boulders in Herrontown Woods are magnetic. He tested pebbles in the streambed and tracked the magnetism upstream to its source in the boulders of the ridge. It's a non-extractive and, of course, non-remunerative version of prospecting for gold. There's a previous post on the subject at this link.

We'll also aim to pass by the area where large boulders were quarried at some point in Princeton's history, leaving big holes in the ground where a boulder had been.

Meet this Sunday, Nov. 27, at 1pm at the Herrontown Woods parking lot, off Snowden Lane. Maps can be found at http://www.fohw.org/p/maps. html.


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