Near Sturgeon Bay in Door County, Wisconsin — The American Midwest (Great Lakes)
Wisconsin State Rock
The red mineral in this rock, potassium feldspar (microcline) is colored by finely divided hematite. Quartz is the glassy material and other minerals are oligoclase and biolite.
Granite is found in many textures and colors, gray, green, black, pink and red and has many uses: monuments, building stone, floors, highway surfacing, counter tops and in this case it was intended to be used as riprap and in breakwaters.
In 2004, the U.S. Corps of Engineers contracted with a Wausau quarry firm to have 800 blocks of granite weighing from four to seven tons each delivered to the west side of this canal to be used at many Corps project sites.
A special thanks to Jim Bonetti, Chief of Operations and Maintenance Kewaunee Office of the U.S. Corps of Engineers, for arranging to provide this rock and its transportation to this site.
Location. 44° 47.965′ N, 87° 19.215′ W. Marker is near Sturgeon Bay, Wisconsin, in Door County. Marker can be reached from Canal Road east Touch for map. Marker is along the Sturgeon Bay and Lake Michigan Ship Canal, which can be reached from the parking area of the Overlook Trail. Marker is at or near this postal address: 2627 Canal Road, Sturgeon Bay WI 54235, United States of America.
Other nearby markers. At least 8 other markers are within 4 miles of this marker, measured as the crow flies. Portage Park (approx. half a mile away); Masonic Temple (approx. 3.6 miles away); Merchants Exchange Bank (approx. 3.7 miles away); Karl Overland (approx. 3.7 miles away); 110-114 North 3rd Avenue (approx. 3.7 miles away); Ellsworth L. Peterson (approx. 3.7 miles away); Fred J. Peterson (approx. 3.7 miles away); Robert E. Peterson (approx. 3.7 miles away). Touch for a list and map of all markers in Sturgeon Bay.
Also see . . .
1. Wisconsin State Rock. "Wisconsin designated red granite its state rock on March 9, 1971 after the Kenosha Gem and Mineral Society proposed a mineral and rock be chosen to promote geological awareness." (Submitted on January 11, 2009.)
2. Red Granite. "Granite is an igneous rock, because it formed as melted rock cooled and hardened. Granite is sometimes classified as an intrusive igneous rock, because the melted rock cooled slowly, deep inside the Earth." (Submitted on January 11, 2009.)
Categories. • Natural Features •
Credits. This page was last revised on June 16, 2016. This page originally submitted on January 11, 2009, by Keith L of Wisconsin Rapids, Wisconsin. This page has been viewed 2,590 times since then and 61 times this year. Photos: 1, 2. submitted on January 11, 2009, by Keith L of Wisconsin Rapids, Wisconsin. 3, 4, 5. submitted on June 7, 2011, by Bob (peach) Weber of Prescott Valley, Arizona. • Bill Pfingsten was the editor who published this page.