Ice Age Souvenir

Ice Age Souvenir (HM1BZL)

Location: Ramsey, MN 55303 Anoka County
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Country: United States of America
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N 45° 14.743', W 93° 30.281'

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— Great River Road Minnesota —

Twenty thousand years ago, a great sheet of ice, the Superior lobe, covered thisarea. At its farthest advance, it formed the St. Croix moraine, a series of high hills to thewest, south, and east. When it melted, it left behind vast deposits of gravel, sand, and clay.

The Anoka Sand Plain
After the Superior lobe retreated, another glacier, the Grantsburg sublobe, moved in from the southwest, filling the lowlands with ice. Again the climatewarmed, melting the ice and creating a lake that covered most of Anoka County - includingthis spot. Fine sand carried in the meltwater settled to the bottom. The lake disappeared when its water found an outlet into the Mississippi River, leaving the Anoka Sand Plain, an expanse of sand measuring 2,200 square km (850 square miles).

Dunes and Bogs
Beginning about eight thousand years ago, drier weather and wind formed sand dunes in some areas of the Anoka Sand Plain. Dunes often rise 9m (30 ft) or more above the surrounding land. Meanwhile, low-lying areas of the glacial lake basin are gradually fillingup with organic matter and evolving into bogs.

reverse side
Kettle Lakes and Outwash Plains
As the glaciers retreated, they left behind huge blocks of ice buried by gravel, sand, and clay. When the blocks melted, they left depressions, knownas kettles. Melting ice created thousands of kettle lakes in Minnesota. In many places, melting glaciers also deposited "outwash" plains of sand.
Year Placed1995
Placed ByMinnesota Department of Natural Resource Great River Road marker program
Marker ConditionNo reports yet
Date Added Sunday, September 28th, 2014 at 12:29pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)15T E 460393 N 5010370
Decimal Degrees45.24571667, -93.50468333
Degrees and Decimal MinutesN 45° 14.743', W 93° 30.281'
Degrees, Minutes and Seconds45° 14' 44.58" N, 93° 30' 16.86" W
Driving DirectionsGoogle Maps
Area Code(s)763, 612
Closest Postal AddressAt or near 9340 Hwy 10 NW, Ramsey MN 55303, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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