Steven Dutch, Natural and Applied Sciences, University
of Wisconsin - Green Bay
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SW 1/4 SE 1/4 Sec 10 T26 N R12 E (Shawano County)
I had never set foot in Wisconsin before May, 1976, when I came to Green Bay for my job interview. Like most outsiders, I thought of Wisconsin as this nice placid, law-abiding, cow-oriented state. So imagine my surprise to find there were two free-lance independent countries operating an hour's drive from Green Bay. One was Menominee County, where the Menominee Tribe had just fought an acrimonious battle to have their reservation restored, and where tempers were still running high. The other was this area, where a militia group called the Posse Comitatus tried to set up an independent community. Things are a lot quieter now in both areas.
Tigerton Dells is a shallow gorge cut into coarse Wolf River Batholith granitic rocks. The linear southeast trend of the gorge probably reflects joint control. The numerous east-west hills are commonly mapped as drumlins but may well be bedrock cored with the preferred orientation governed by joints.
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| Above: what's the secret to finding huge phenocrysts like these? | Below: Answer: get a smaller hammer! |
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 | Left and below: the real thing is impressive enough. There are 5-centimeter crystals rounded by abrasion in the magma. |
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 | Left: pegmatitic zone. |
 | Left and below: views of the outcrops and the Embarrass River. |
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 | Left and below: early spring permits much better views of outcrops. |
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Created 16 April 2007, Last Update 16 April 2007
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