Hoyt Lakes in Saint Louis County, Minnesota — The American Midwest (Upper Plains)

This Piece of Rock

Photographed By McGhiever, July 28, 2017

1. Marker

Inscription. Click to hear the 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.

Erected 1975 by Iron Range Historical Society.

Topics. This historical marker is listed in this topic list: Environment.

Location. 47° 33.248′ N, 92° 7.207′ W. Marker is in Hoyt Lakes, Minnesota, in Saint Louis County. Marker can be reached from County Road 666. On inner side of parking pullout northeast of County Road 666. Touch for map. Marker is at or near this postal address: 6500 County Road 666, Hoyt Lakes MN 55750, United States of America. Touch for directions.

Other nearby markers. At least 8 other markers are within 11 miles of this marker, measured as the crow flies. Edmund J. Longyear (a few steps from this marker); First Diamond Drill Hole in the State of Minnesota (a few steps from this marker); Longyear Drill Site

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(approx. 0.3 miles away); Embarrass Co-op (approx. 8.1 miles away); Alma Norha Playhouse (approx. 8.3 miles away); Nelimark Sauna (approx. 8.3 miles away); Apostolic Lutheran Church (approx. 8.7 miles away); Hanka Homestead (approx. 10.2 miles away). Touch for a list and map of all markers in Hoyt Lakes.

Additional keywords. geology

Marker environs image. Click for full size.

Photographed By McGhiever, July 28, 2017

2. Marker environs

Credits. This page was last revised on August 8, 2017. It was originally submitted on August 6, 2017, by McGhiever of St Paul, Minnesota. This page has been viewed 202 times since then and 36 times this year. Photos: 1, 2. submitted on August 6, 2017, by McGhiever of St Paul, Minnesota. • Bill Pfingsten was the editor who published this page.