James River-Big Sioux River drainage divide area landform origins south of Huron and Brookings and north of Mitchell and Sioux Falls, South Dakota, USA

A geomorphic history based on topographic map evidence  Abstract: The James River-Big Sioux River drainage divide area investigated here is located south of Huron and Brookings and north of Mitchell and Sioux Falls, South Dakota, USA. The James River flows south in a broad lowland interpreted here to have originated as the floor of a […]

James River-Big Sioux River drainage divide area landform origins south of Mitchell and Sioux Falls, South Dakota, USA

A geomorphic history based on topographic map evidence Abstract: The James River-Big Sioux River drainage divide area south of Mitchell and Sioux Falls is located in the southeast corner of South Dakota, USA. Major drainage routes present include the south-oriented James, Vermillion, and Big Sioux Rivers, all of which flow to the southeast-oriented Missouri River, […]

Big Sioux River-Minnesota River drainage divide area landform origins in Brookings County, South Dakota and Lincoln and Lyons Counties, Minnesota, USA

A geomorphic history based on topographic map evidence Abstract: The Big Sioux River-Minnesota River drainage divide area discussed here is located in Brookings County, South Dakota and Lincoln and Lyon Counties, Minnesota, USA. Major landforms include the Prairie Coteau upland surface and the northeast-facing Prairie Coteau escarpment. The Prairie Coteau escarpment is interpreted here to […]

Big Sioux River-Rock River drainage divide area landform origins in South Dakota, Minnesota, and Iowa, USA

A geomorphic history based on topographic evidence Abstract: The Big Sioux River-Rock River drainage divide area is located in southeastern South Dakota, the Minnesota southwest corner, and the Iowa northwest corner. Rock River is a south and south-southwest oriented tributary to the south-oriented Big Sioux River. Topographic map evidence suggests the Rock River valley eroded […]

Rock River-Des Moines River drainage divide area landform origins, southwest Minnesota, USA

A geomorphic history based on topographic evidence  Abstract: The Rock River-Des Moines River drainage divide area is located in southwest Minnesota, USA. The Rock River flows south to the south-oriented Big Sioux River. The Des Moines River flows in a southeast direction along the crest of the northeast-facing Prairie Coteau escarpment and eventually joins the […]

Big Sioux River-Floyd River drainage divide area landform origins in northwest Iowa, USA

A geomorphic history based on topographic map evidence Abstract: The Big Sioux River-Floyd River drainage divide area is located in northwest Iowa. Present day Big Sioux-Floyd River drainage divide area landforms include the Big Sioux River and Big Sioux River tributary valleys, Floyd River and Floyd River tributary valleys, and drainage divides between the various […]

Missouri River-James River drainage divide landform origins in Walworth, Edmunds, Potter, and Faulk Counties, South Dakota, USA

A geomorphic history based on topographic map evidence Abstract: The Missouri River-James River drainage divide area in Walworth, Edmunds, Potter, and Faulk Counties, South Dakota is located in north central South Dakota. Between the south-oriented Missouri River to the west and the south-oriented James River to the east in the drainage divide area is the […]

Missouri River-James River drainage divide area landform origins in Buffalo, Jerauld, Brule, and Aurora Counties, South Dakota, USA

A geomorphic history based on topographic map evidence Abstract: The Missouri River-James River drainage divide area discussed here is located in Buffalo, Jerauld, Brule, and Aurora Counties, South Dakota and also includes some areas in Hyde and Hand Counties. Major landforms illustrated and discussed include the Missouri River valley, a Missouri Coteau upland surface remnant, […]

Missouri River-James River drainage divide area landform origins in Charles Mix, Douglas, Hutchinson, Bon Homme, and Yankton Counties, South Dakota, USA

A geomorphic history based on topographic map evidence Abstract: The Missouri River-James River drainage divide area in Charles Mix, Douglas, Hutchinson, Bon Homme, and Yankton Counties, South Dakota is located at the south end of the Missouri River-James River drainage divide area. Landforms are interpreted to have formed during immense floods when the margin of […]