Lake Pepin

Lake Pepin (HMUQW)

Location: Reads Landing, MN 55968 Wabasha County
Country: United States of America

N 44° 24.607', W 92° 6.421'

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Inscription
Lake Pepin occupies the Mississippi Valley above this point for a distance of 22 miles. The lake is formed by the delta of the Chippewa River which enters the Mississippi directly east of this site.

The Chippewa, a relatively small river, has a much steeper gradient than that of the Mississippi. It was therefore able to transport more sand and coarser gravel than the master stream could remove. In consequence the Mississippi was dammed back in the gorge to form Lake Pepin.

The surface of the lake is 664 feet above sea level and 450 feet below the top of thebluffs which line its shores.

The sand and limestone walls of the gorge are composed of material deposited in Cambrian and Ordovician seas when the continent was submerged some 400 million years ago.

The bottom of the gorge is 150 feet below the lake surface having been filled to its presentelevation as the carrying power of the river decreased.

[Seals of the Minnesota Department of Highways and The Minnesota Historical Society]
Geological Society of Minnesota
Details
HM NumberHMUQW
Tags
Marker NumberWB-PEP-012
Year Placed1950
Placed ByThe Geological Society of Minnesota
Marker ConditionNo reports yet
Date Added Tuesday, October 7th, 2014 at 8:12pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)15T E 571099 N 4917812
Decimal Degrees44.41011667, -92.10701667
Degrees and Decimal MinutesN 44° 24.607', W 92° 6.421'
Degrees, Minutes and Seconds44° 24' 36.42" N, 92° 6' 25.26" W
Driving DirectionsGoogle Maps
Area Code(s)651
Closest Postal AddressAt or near 1151 Hince Dr, Reads Landing MN 55968, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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