Question: Karl Miles Le Compte was a ten-term Republican U.S. Representative from what U.S. state in the Midwestern United States, bordered by the Mississippi River on the east and the Missouri River and the Big Sioux River on the west?

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Pipestone Creek (Big Sioux River): Pipestone Creek is a 53.2 mi river in southwestern Minnesota, having a center branch as well as branches named "North" and "South".  The creek (center branch) begins about 3 mi north of Holland (the high point of its watershed actually being underneath the north branch's watershed) and flows southwesterly, roughly following MN State Highway 23 for much of its early existence (also being known as County Ditch Number 1).  The creek approaches the town of Pipestone from the east, but turns northwesterly just before Highway 23 meets U.S. Highway 75, with the creek going under both highways in rapid succession.  Flowing through Pipestone National Monument, the creek passes over Winnewissa Falls, and then enters the adjacent State DNR controlled "Pipestone Wildlike Management Area" where a small "impoundment" (dam) forms "Indian Lake".  The creek continues northwesterly until turning southwesterly just east of County Road 53.  On the west side of County Rd 53, and on the North side of Country Rd 5, it is joined by the North branch, and on the south side of the same road, the South branch joins.  The creek continues southwesterly, and crosses the state line in South Dakota above the road known as 81st Street in Minnesota and 236th A Street in South Dakota.  It does not travel far into South Dakota, but loops back into Minnesota, flowing into Split Rock Creek within a mile of the state line, this confluence about 3 miles north of Sherman, South Dakota, also being 3 miles south of Jasper, Minnesota.  Split Rock Creek itself is a tributary of the Big Sioux River, which in turn flows via the Missouri River and Mississippi River to the Gulf of Mexico.

Iowa: Iowa ( ) is a U.S. state in the Midwestern United States, bordered by the Mississippi River on the east and the Missouri River and the Big Sioux River on the west.  Surrounding states include Wisconsin to the northeast, Illinois to the east, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north.

Rock River (Big Sioux River): The Rock River is a tributary of the Big Sioux River, about 144 mi long, in southwestern Minnesota and northwestern Iowa in the United States.  Via the Big Sioux and Missouri rivers, it is part of the watershed of the Mississippi River.

Little Sioux River: The Little Sioux River is a river in the United States.  It rises in southwestern Minnesota near the Iowa border, and continues to flow southwest for 258 mi across northwest Iowa into the Missouri River at Little Sioux.  The Little Sioux River was known as Eaneah-waudepon or "Stone River" to the Sioux Indians.  Its tributaries include the Ocheyedan River, Maple River and the West Fork of the Little Sioux River.  The Little Sioux River is integral to the Nepper Watershed Project, a major Iowa flood control and soil conservation program that was introduced in 1947.

Karl M. Le Compte: Karl Miles Le Compte (May 25, 1887 – September 30, 1972) was a ten-term Republican U.S. Representative from south-central Iowa.  He won ten consecutive races from 1938 to 1956, before choosing not to run again in 1958.

West Fork of the Little Sioux River: West Fork of the Little Sioux River is a river in the United States.  Approximately 95 mi long, it courses through northwest Iowa, rising north of Marcus in Cherokee County and flowing generally southwest through farmland in Plymouth and Woodbury counties until the meandered (old) streambed finally meets the Little Sioux River near Turin in Monona County.  However, the lower portion of the river, where the stream leaves the Loess Hills and enters the Missouri River floodplain near Holly Springs, Iowa, has been extensively channelized.  Across this floodplain, most of the flow is actually carried by the Garretson and West Fork drainage ditches, which join to become the Monona-Harrison Ditch, which in turn enters the Missouri just upstream from the mouth of the Little Sioux in Harrison County.  Thus, today the waters of the West Fork of the Little Sioux are no longer functionally tributary to the Little Sioux River proper.

Interstate 29 in Iowa: In the U.S. state of Iowa, Interstate 29 (I-29) is a north–south Interstate Highway which closely parallels the Missouri River.  I-29 enters Iowa from Missouri near Hamburg and heads to the north-northwest through the Omaha-Council Bluffs and the Sioux City areas.  It exits the state by crossing the Big Sioux River into South Dakota.  For its entire distance through the state, it runs on the flat land between the Missouri River and the Loess Hills.

Dakota Dunes, South Dakota: Dakota Dunes is an unincorporated community, master-planned residential and commercial development covering about 2000 acre in Union County in the extreme southeast corner of the U.S. state of South Dakota.  The development is sandwiched between the Big Sioux River and the Missouri River.  The nearest incorporated municipality is North Sioux City, South Dakota, with which Dakota Dunes shares the zip code 57049.  Dakota Dunes is about five miles (8 km) west of downtown Sioux City, Iowa.

Big Sioux River: The Big Sioux River is a tributary of the Missouri River, 419 miles (674 km) long, in eastern South Dakota and northwestern Iowa in the United States.  The United States Board on Geographic Names settled on "Big Sioux River" as the stream's name in 1931.  The river was named after the Lakota people (Sioux Indians).

Stone State Park: Stone State Park is a state park of Iowa, USA, located in the bluffs and ravines adjacent to the Big Sioux River.  The park consists of 1069 acre in Woodbury and Plymouth Counties near Sioux City, and overlooks the South Dakota-Iowa border.  Stone Park is near the northernmost extent of the Loess Hills, and is at the transition from clay bluffs and prairie to sedimentary rock hills and bur oak forest along the Iowa side of the Big Sioux River.  A variety of prairie plants can be found on the steep slopes and ridges, including yucca, penstemon, rough blazing star, silky aster, and pasque flower.  Wild turkey, white-tailed deer, coyote, and red fox are found in the park.  Birdlife includes the turkey vulture, barred owl, rufous-sided (eastern) towhee, and the ovenbird.  Exposed bedrock in the park is composed of lignite, shale, sandstone, and limestone, and dates to the Cretaceous period; it is rich in marine fossils.  The park contains many miles of hiking and equestrian trails, and is a popular destination for day visitors, overnight campers, mountain bike enthusiasts, and picnickers.

Supporting paragraphs: Karl M. Le Compte Iowa
Answer: Iowa