Penokee Iron Range Trail - Plummer Mine Geologic Layer Cake
Iron County Heritage Area
A catastrophe tilted this geologic layer cake, standing the rock layers almost on end, at a 65 degree angle to the northwest. At this steep pitch, the layers slipped apart. Rain water seeped between the cracks. Over eons the layers of iron carbonate rock oxidized creating a band of low phosphorus hematite, a highly prized form of iron ore used in making steel.
You are standing above the “footwall” – the geologic intersection of a dike and the southern most edge of the iron formation. Along this edge the greatest concentration of iron ore was found. This underground wealth, created eons ago, spurred the development of the Penokee Iron Range.
Location. 46° 24.458′ N, 90° 17.581′ W. Marker is near Pence, Wisconsin, in Iron County. Marker can be reached from Plummer Road ¼ mile south of Wisconsin Highway 77. Touch for map. Marker
Other nearby markers. At least 8 other markers are within 4 miles of this marker, measured as the crow flies. Penokee Iron Range Trail - Plummer Location (here, next to this marker); Penokee Iron Range Trail - Plummer Mine (a few steps from this marker); Flambeau Trail – Flambeau Trail Crossing (approx. 2.2 miles away); Penokee Iron Range Trail – A Company Town (approx. 3 miles away); Penokee Iron Range Trail – Montreal Location (approx. 3 miles away); Montreal Trails – The Montreal Mine (approx. 3.3 miles away); George W. Sullivan (approx. 3.4 miles away); The City of Montreal (approx. 3.4 miles away). Touch for a list and map of all markers in Pence.
More about this marker. It appears some knucklehead decided to use the marker for shotgun practice.
Additional keywords. Mining
Categories. • Industry & Commerce • Natural Features •
Credits. This page was last revised on June 16, 2016. This page originally submitted on August 2, 2011, by Paul Fehrenbach of Germantown, Wisconsin. This page has been viewed 328 times since then and 6 times this year. Photos: 1, 2, 3. submitted on August 2, 2011, by Paul Fehrenbach of Germantown, Wisconsin. • Bill Pfingsten was the editor who published this page.