The Geology of Perrot State Park

The Geology of Perrot State Park (HMVF6)

Location: Trempealeau, WI 54661 Trempealeau County
Country: United States of America

N 44° 1.398', W 91° 29.22'

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Inscription
Millions of Years Ago
[drawing]
Millions of years ago, Trempealeau Mountain, the bluffs of Perrot State Park, and the Minnesota upland across the river were all one continuous rock mass. Over time, Cedar Creek, Big Trout Creek, and their tributaries carved channels that would isolate Trempealeau Mountain. This drawing shows that the Mississippi River ran north of the park.

Present Day
[drawing]
During the last part of the Ice Age, some 50,000 years ago, glacial meltwaters laden with sand, gravel, and debris blocked the river's previous route. This forced the Mississippi River to seek a new channel. This drawing shows how this diversion shifted the boundary between Wisconsin and Minnesota. We can thank the glacier for giving Wisconsin the gift of Perrot State Park.
Details
HM NumberHMVF6
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Marker ConditionNo reports yet
Date Added Thursday, September 18th, 2014 at 10:30am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)15T E 621256 N 4875573
Decimal Degrees44.02330000, -91.48700000
Degrees and Decimal MinutesN 44° 1.398', W 91° 29.22'
Degrees, Minutes and Seconds44° 1' 23.88" N, 91° 29' 13.20" W
Driving DirectionsGoogle Maps
Area Code(s)608
Closest Postal AddressAt or near 7 S Park Rd, Trempealeau WI 54661, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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