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, […]
Tag archives for Physical Geography
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 […]
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 […]
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 […]
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 […]
A geomorphic history based on topographic map evidence Abstract: The Missouri River-James River drainage divide area in Sully, Hyde, Hand, and Hughes Counties is located in central South Dakota. The region is bounded on the west by the south and southeast oriented Missouri River and on the east by the south-oriented James River. The James […]
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, […]
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 […]
A geomorphic history based on topographic map evidence Abstract: The Bazile Creek-North Fork Elkhorn River drainage divide area is located in Knox, Pierce, and Antelope Counties, northeast Nebraska. USA. Bazile Creek flows in a north and north-northwest oriented direction to join a northeast-oriented segment of the southeast-oriented Missouri River. The North Fork Elkhorn River flows […]
A geomorphic history based on topographic map evidence Abstract: The Bow Creek-Logan Creek and other drainage divides in Cedar, Dixon, and Dakota Counties are located in northeast Nebraska between the southeast oriented Missouri River and the southeast oriented Elkhorn River. Bow Creek is a northeast and north oriented Missouri River tributary and Logan Creek is a southeast […]
A geomorphic history based on topographic map evidence Abstract: The Elkhorn River-Logan Creek drainage divide area in Wayne, Stanton, and Cuming Counties is located in northeast Nebraska, USA. The Elkhorn River generally flows in a southeast and south direction to join the Platte River slightly west of Omaha and the Platte River then flows south […]
A geomorphic history based on topographic map evidence Abstract: The Logan Creek-Missouri River drainage divide area in Dakota, Thurston, and Burt Counties is located in northeast Nebraska, USA. Logan Creek is a southeast and south oriented Elkhorn River tributary located west of the south-southeast Missouri River. Through valleys link north-oriented (barbed) Missouri River tributary valleys with […]
A geomorphic history based on topographic evidence Abstract: The Elkhorn River-Missouri River drainage divide area in Washington, Douglas, and Sarpy Counties, Nebraska is drained by the southeast-oriented Papillion Creek valley stem, which is located between the south oriented Elkhorn and Missouri River valleys. The south oriented Elkhorn River is located west of the Missouri River and flows […]
A geomorphic history based on topographic evidence Abstract: The Elkhorn River-Platte River drainage divide area located in Stanton, Cuming, Colfax, and Dodge Counties, Nebraska is primarily drained by south-southeast and east oriented Maple Creek, southeast-oriented Pebble Creek, and east-oriented Rawhide Creek drainage systems, all of which flow to the south-southeast oriented Elkhorn River. Landform evidence […]
A geomorphic history based on topographic map evidence Abstract: The Elkhorn River-Shell Creek drainage divide area in Antelope, Madison, Boone, and Platte Counties was eroded by a massive southeast-oriented flood, which had a source northwest of the Elkhorn River-Shell Creek drainage divide area. The southeast-oriented flood flow was captured in southern Boone and Platte Counties […]
A geomorphic history based on topographic map evidence Abstract: The Elkhorn River-Loup River drainage divide area between Shell Creek and Beaver Creek, Nebraska, was eroded by massive southeast-oriented floods, which before being beheaded by Elkhorn River headward erosion flowed to what was probably a newly eroded east-oriented Loup River-Platte River valley. Evidence supporting this interpretation […]
A geomorphic history based on topographic map evidence Abstract: The Beaver Creek-Cedar River drainage divide area between the South Fork Elkhorn River and the Loup River was eroded by a massive southeast-oriented flood. Evidence for the southeast-oriented flood flow is found in the present day orientation of southeast-oriented Beaver Creek and Cedar River valleys and […]
A geomorphic history based on topographic map evidence Abstract: The Elkhorn River-Loup River drainage divide area in Rock, Holt, and Garfield Counties, Nebraska was eroded by a massive southeast-oriented flood, which also deposited deltaic sediments in the region. Subsequent eolian activity has created sand dunes and otherwise obscured the regional drainage history, although present day […]
A geomorphic history based on topographic map evidence Abstract: The southeast-oriented Cedar River and North Loup River valleys in Valley, Greeley, and adjacent counties drain to the northeast-oriented Loup River, which flows along the north edge of the large northeast-oriented Platte River valley. Topographic map evidence demonstrates the southeast-oriented Loup River tributary valleys and their […]
A geomorphic history based on topographic map evidence Abstract: The Loup River-Platte River drainage divide area between Kearney and Columbus records the history of two immense converging glacial melt water floods during their central Nebraska flood flow events. An immense southeast-oriented flood flowed from the northwest into Nebraska, where late during the flood history it […]
A geomorphic history based on topographic map evidence Abstract: The North Loup River-Middle Loup River drainage divide area in Valley, Sherman, and Howard Counties was eroded by immense southeast-oriented floods, which eroded the southeast-oriented North and Middle Loup River valleys headward from what was a newly eroded and large northeast-oriented Loup River-Platte River valley. Evidence […]
A geomorphic history based topographic map evidence Abstract: The Middle Loup River-Mud Creek drainage divide area in Custer, Valley, Sherman Counties, Nebraska was eroded by an immense southeast-oriented flood that flowed across the entire drainage divide area. Initially flood waters flowed across a topographic surface at least as high as the highest drainage divide elevations […]
A geomorphic history based on topographic map evidence Abstract: The Mud Creek-South Loup River drainage divide area in Custer, Sherman, and Buffalo Counties was eroded by immense southeast-oriented floods , which initially flowed on a topographic surface at least as high as the highest drainage divide elevations today. Evidence supporting this flood erosion interpretation includes […]
A geomorphic history based on topographic map evidence Abstract: The South Loup River-Platte River drainage divide area in Logan, Lincoln, Custer, and Dawson Counties, Nebraska, was eroded by a massive southeast and south-southeast oriented flood flowing across the entire drainage divide area. Evidence for the flood flow is seen in present day valley alignments, large […]
A geomorphic history based on topographic map evidence Abstract: Topographic map interpretation methods are used to determine Loup River-Platte River drainage divide area landform origins in the Nebraska Sand Hills region. Headwaters of major Loup River tributaries originate in the Nebraska Sand Hills region and flow in an east direction before turning to flow in […]
Missouri River drainage basin landform origins research project 