Driftless Area

Driftless ZoneDriftless RegionCoulee RegionWestern WisconsinPaleozoic Plateau52 Driftless Areablufflands areaDriftless Area (ecoregion)unglaciated region of WisconsinWisconsin Driftless
The Driftless Area is a region in southwestern Wisconsin, southeastern Minnesota, northeastern Iowa, and the extreme northwestern corner of Illinois, of the American Midwest.wikipedia
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Wisconsin

WIState of WisconsinGeography of Wisconsin
The Driftless Area is a region in southwestern Wisconsin, southeastern Minnesota, northeastern Iowa, and the extreme northwestern corner of Illinois, of the American Midwest. In the east, the Baraboo Range, an ancient, profoundly eroded monadnock in south central Wisconsin, consists primarily of Precambrian quartzite and rhyolite.
Wisconsin's geography is diverse, having been greatly impacted by glaciers during the Ice Age with the exception of the Driftless Area.

Iowa

IAState of IowaNorthern Iowa
The Driftless Area is a region in southwestern Wisconsin, southeastern Minnesota, northeastern Iowa, and the extreme northwestern corner of Illinois, of the American Midwest.
Northeast Iowa along the Upper Mississippi River is part of the Driftless Area, consisting of steep hills and valleys which appear almost mountainous.

Minnesota

MNState of MinnesotaMinnesota, USA
The Driftless Area is a region in southwestern Wisconsin, southeastern Minnesota, northeastern Iowa, and the extreme northwestern corner of Illinois, of the American Midwest.
This area is known as the Driftless Zone for its absence of glacial drift.

Midwestern United States

MidwestMidwesternAmerican Midwest
The Driftless Area is a region in southwestern Wisconsin, southeastern Minnesota, northeastern Iowa, and the extreme northwestern corner of Illinois, of the American Midwest.
In particular, the following areas exhibit a high degree of topographical variety: the eastern Midwest near the foothills of the Appalachian Mountains; the Great Lakes Basin; the Ozark Mountains of southern Missouri; the rugged topography of Southern Indiana and Southern Illinois; and the Driftless Area of northwestern Illinois, southwestern Wisconsin, southeastern Minnesota, and northeastern Iowa.

Blue Mound State Park

Blue MoundBlue Mounds
The region includes elevations ranging from 603 to 1,719 feet (184 to 524 m) at Blue Mound State Park and covers 24,000 sqmi.
The 1153 acre park features a pair of observation towers affording views of the Wisconsin River valley and Baraboo Range to the north, the mounds, buttes, and rolling forests of the Driftless Area to the south and west, and the young glacial plains and city of Madison to the east.

Illinois

ILState of IllinoisIll.
The Driftless Area is a region in southwestern Wisconsin, southeastern Minnesota, northeastern Iowa, and the extreme northwestern corner of Illinois, of the American Midwest.
In extreme northwestern Illinois, the Driftless Area, a region of unglaciated and therefore higher and more rugged topography, occupies a small part of the state.

Root River (Minnesota)

Root RiverRootSouth Branch Root River
Small towns in a deep steep valley going down to the Mississippi are at risk every 50 to 100 years or so of a major flood, as with the wreck of Gays Mills, Wisconsin, in August 2007, or the holding of the levee in Houston, Minnesota, (on the South Fork Root River) at the same time.
The Root River flows for 80 mi through the Driftless Area of southeastern Minnesota and is a tributary of the Upper Mississippi River.

Kickapoo River

KickapooKickapoo Reserve Management BoardKickapoo River Natural Area
The Kickapoo River flood stage is 13 feet but was recorded as high as 23 feet during the 2018 flood which was declared a statewide emergency.
The river begins midway between Wilton, Wisconsin and Mill Bluff State Park and flows south through a deep valley cut into the hilly Driftless Zone of southwest Wisconsin.

Upper Mississippi River

UpperUpper Mississippi ValleyUpper Mississippi
The history of this portion of the Upper Mississippi River dates back to an origin "as an ice-marginal stream during what had been referred to as the “Nebraskan glaciation.”" Current terminology would place this outdated and abandoned period in the Pre-Illinoian Stage.
The Driftless Area is a portion of North America left unglaciated at that ice age's height, hence not smoothed out or covered over by previous geological processes.

Baraboo Range

Baraboo Hills
In the east, the Baraboo Range, an ancient, profoundly eroded monadnock in south central Wisconsin, consists primarily of Precambrian quartzite and rhyolite.
The eastern end of the range was glaciated during the Wisconsinian glaciation, while the western half was not, and consequently, marks the eastern boundary of Wisconsin's Driftless Area.

Chippewa River (Wisconsin)

Chippewa RiverChippewaChipewa river
The border is defined by the catchment of the Chippewa River on the north, and somewhat west (or east, depending on if the southwestern portion of Wisconsin's Central Plain is included) of the north-south line of the Wisconsin River.
Its catchment defines a portion of the northern boundary of the Driftless Area.

Zumbro River

ZumbroNorth Fork of the Zumbro RiverSouth Branch of the Middle Fork of the Zumbro River
The Zumbro River is a tributary of the Mississippi River in the Driftless Area of southeastern Minnesota in the United States.

Waukon, Iowa

WaukonWaukon, IA
The Waukon Municipal Airport is reliably established as being 1281 ft above sea level.
This is on the west edge of the deeply eroded Driftless Area of northwest Iowa.

Drift (geology)

glacial driftdriftdrift geology
The rugged terrain is due both to the lack of glacial deposits, or drift, and to the incision of the upper Mississippi River and its tributaries into bedrock.
The Driftless Area refers to an unglaciated portion of North America devoid of the glacial drift of surrounding regions.

Whitewater River (Minnesota)

Whitewater RiverWhitewaterWhitewater Valley
The Whitewater River is a 16.6 mi tributary of the Upper Mississippi River which flows through the Driftless Area of Minnesota, reaching its mouth in Wabasha County at the community of Weaver opposite Buffalo, Wisconsin.

Fulton, Illinois

FultonFulton, ILFulton, Ill.
In contrast, as the River exits the Driftless Area "between Fulton and Muscatine, [... (Pool 13)], it flows over or near bedrock."
The most northeastly portion of the county is in the Driftless Area of Illinois, where the Apple River meets the Upper Mississippi River.

Trempealeau River

TrempealeauTrempealeau rivers
The Trempealeau River (pronounced TREM-puh-lo) is an 81.5 mi tributary of the Mississippi River in the Driftless Area of western Wisconsin in the United States.

Maquoketa River

MaquoketaNorth Fork Maquoketa RiverSouth Fork Maquoketa River
A line east of the most easterly tributaries of the Wapsipinicon River defines the terminal moraine that marks the western boundary of the Driftless, with the catchment of the Maquoketa River south of Bellevue serving as a southern boundary.
The river and its tributaries mark the border of the Driftless Area of Iowa, with the areas east of it not having been covered by ice during the last ice age.

Algific talus slope

algific talus slopes
The Driftless Area contains more than half of the world's algific talus slopes, a type of small, isolated ecosystem.
Algific talus slopes comprise a very rare, fragile ecosystem and habitat initially stated to exist only in the Driftless Area of Minnesota, Wisconsin, Illinois, and especially, Iowa.

Wisconsin River

Wisconsin Wisconsin River ValleyLower Wisconsin State Riverway Board
The border is defined by the catchment of the Chippewa River on the north, and somewhat west (or east, depending on if the southwestern portion of Wisconsin's Central Plain is included) of the north-south line of the Wisconsin River. Evidence from soil borings and recent Lidar imagery in the lower Wisconsin River valley in the Driftless area suggests that the river in the valley used to flow towards the east, rather than its present westerly course towards its confluence with the Mississippi River.
The lower, westward-flowing portion of the river is located in the unglaciated Driftless Area, and this section of the river's course likely predates the rest by several million years.

Upper Mississippi River National Wildlife and Fish Refuge

Upper Mississippi River Floodplain WetlandUpper Mississippi River Floodplain WetlandsUpper Mississippi River Wild Life and Fish Refuge
The Driftless Area National Wildlife Refuge was primarily carved out of the Upper Mississippi River National Wildlife and Fish Refuge in order to protect these species and their associated ecosystems.
In its northern portion, it is in the Driftless Area, a region of North America that remained free from ice during the last ice age.

2007 Midwest flooding

2007August 2007 floods
Metropolitan areas have flood walls (See 2007 Midwest flooding).
Southeast Minnesota and southwestern Wisconsin are in the Driftless Area, which was not covered by the last glaciation, and therefore is not covered by deep layers of glacial till.

Goat prairie

hill prairie
Prairies also occurred on steep slopes with south or southwest aspect (see goat prairie ).
Goat prairies, sometimes termed hill prairies, or dry prairies are found mainly along the valley of the Upper Mississippi River in the Driftless Area, but can occur elsewhere.

Lock and Dam No. 13

Pool 13Lock 13
In contrast, as the River exits the Driftless Area "between Fulton and Muscatine, [... (Pool 13)], it flows over or near bedrock." The Mississippi River passes through the Driftless Area between and including Pool 2 and Pool 13.
This lock and dam represent the man-made exit from the Driftless Area, where shipping has to travel a few feet above bedrock over the 9 ft shipping channel.

Cannon River (Minnesota)

Cannon RiverCannon
Past the Falls, the river is in the Driftless Area of Minnesota, a region that remained ice free during the last ice age, allowing the river to carve a very impressive canyon.