Road Marker Information

Description:

Geology of Adrian area

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I90, Adrian, MN 56110

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Country: Nobles County
Where Found:

Adrian Rest Area on I-90 Marker not found

Marker Number:143
Marker Composition:

Text on Marker:

143. GEOLOGY OF THE ADRIAN AREA

Located on I-90 (West bound) in the Adrian rest area

The landscape along Interstate 90 between Austin and Adrian varies from a flat to a gently rolling plain.  This topography was shaped beneath a thick lobe of glacial ice. About 14,000 years ago, ice advancing through the Manitoba region follow the lowlands of the Red River valley and the Minnesota River valley and reached south into central Iowa  At its maximum, the ice lobe’s western margin deposited glacial sediment (clay, silt, sand gravel, and boulders) as it melted, producing a broad belt of low hills called a moraine, which extends to the northwest and upon which this rest stop was build.  Streams to the east of this moraine rest stop was built.  Streams to the east of this moraine drain into the Mississippi River system, whereas streams to the west, like Kanaranzi Creek just south of here, drain into the Missouri River System.  Thus, the moraine is now a drainage dive.  

Region: South Central/West Region

Information Needed:

1. Not Found Reported

Condition of Marker:
Do it Yourself Region: Southwest Corner
Verification: Not installed yet