This Piece of Rock

This Piece of Rock (HM20J2)

Location: Hoyt Lakes, MN 55750 St. Louis County
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Country: United States of America
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N 47° 33.248', W 92° 7.207'

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Inscription
This piece of rock is from the lower part of the Upper Slaty Member-Biwabik Formation. The rock consists of thin wavy beds of magnetite—magnetic, black fine grained argillite & 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.
Details
HM NumberHM20J2
Tags
Year Placed1975
Placed ByIron Range Historical Society
Marker ConditionNo reports yet
Date Added Tuesday, August 8th, 2017 at 7:01am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)15T E 566198 N 5267121
Decimal Degrees47.55413333, -92.12011667
Degrees and Decimal MinutesN 47° 33.248', W 92° 7.207'
Degrees, Minutes and Seconds47° 33' 14.88" N, 92° 7' 12.42" W
Driving DirectionsGoogle Maps
Area Code(s)218
Closest Postal AddressAt or near Co Rd 666, Hoyt Lakes MN 55750, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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