Longyear Drilling Site Rock – Hoyt Lakes, MN
Posted by: Groundspeak Regular Member wildernessmama
N 47° 33.252 W 092° 07.204
15T E 566202 N 5267128
Quick Description: A marker placed by the Iron Range Historical Society tells about the displayed rock.
Location: Minnesota, United States
Date Posted: 11/17/2012 6:50:33 PM
Waymark Code: WMFQAE
Published By: Groundspeak Regular Member KC0GRN
Views: 0

Long Description:
A geological treasure sits in the parking area near the Longyear historical drilling site and trails. The marker was placed by the Iron Range Historical Society and reads:

This piece of rock is from the lower part of the upper slaty member – Biabik formation. The rock consists of thin, wavy beds of magnetite, magnetic black fine-grained argillite and irregular shaped pods or lenses of chert/silicate. This rock is about 2 billion years old.

During the last glacial stage, about 10 thousand years ago, this rock was plucked from an outcrop north of here.

Iron Range Historical Society, 1975.
Marker Type:: Roadside

Visit Instructions:
A photo of the 'Marker' or 'Plaque' is required to identify the location, plus a picture of the 'Historic Site'.
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