Osage Fork (Gasconade River)-Gasconade River drainage divide area landform origins in Laclede, Pulaski, Webster, and Wright Counties, Missouri, USA

Abstract: The Osage Fork (Gasconade River)-Gasconade River drainage divide area in Laclede, Pulaski, Webster, and Wright Counties, Missouri was eroded by immense south-oriented floods, which flowed across the entire state of Missouri and adjacent states. Flood waters were derived from a rapidly melting North American ice sheet and were captured in sequence from south to […]

Gasconade River-White River drainage divide area landform origins in Webster, Wright, and Douglas Counties, Missouri, USA

Abstract: The Gasconade River-White River drainage divide in Webster, Wright, and Douglas Counties, Missouri consists of an asymmetric west-to-east oriented drainage divide between the south-oriented White River drainage basin and the north-oriented Gasconade River drainage basin and an asymmetric north-to-south oriented drainage divide between east oriented Gasconade River drainage basin and the west-oriented White River drainage […]

Gasconade River-White River drainage divide area landform origins in Texas County, Missouri, USA

Abstract: The Gasconade River-White River drainage divide area in Texas County, Missouri is a north-south oriented drainage divide between the north-oriented Big Piney River drainage basin on the west and the southeast-oriented Current river drainage basin on the east with the south-oriented North Fork White River drainage basin west of the Big Piney River drainage […]

Gasconade River-Big Piney River drainage divide area landform origins in Laclede, Pulaski, and Texas Counties, Missouri, USA

Abstract: The Gasconade River-Big Piney River drainage divide in Laclede, Pulaski, and Texas Counties, Missouri was eroded during a massive reversal of immense south-oriented floods. Flood waters were derived from a rapidly melting North American ice sheet and for a time flowed south across Laclede, Pulaski, and Texas Counties to what was then the newly […]

Osage River-Gasconade River drainage divide area landform origins in Osage, Miller, Maries, and Pulaski Counties, Missouri, USA

Abstract: The Osage River-Gasconade River drainage divide area in Osage, Miller, Maries, and Pulaski Counties, Missouri was eroded by immense south oriented floods which were captured and diverted to flow in southeast, east, and northeast directions by headward erosion of deep north-oriented Missouri River and Osage River tributary valleys. Headward erosion of the deep east-oriented Missouri […]

Missouri River-Gasconade River drainage divide area landform origins in Osage and Gasconade Counties, Missouri, USA

Abstract: The Missouri River-Gasconade River drainage divide in Osage and Gasconade Counties, Missouri is the drainage divide between the northeast and east oriented Missouri River and the Gasconade River, which is a northeast and north-northeast oriented Missouri River tributary. The Missouri River-Gasconade River drainage divide area was eroded by immense south-oriented floods derived from a […]

Floyd River-Little Sioux River northern drainage divide area landform origins, northwest Iowa, USA

Abstract: This essay uses topographic map evidence to illustrate and discuss landform origins in the Floyd River-Little Sioux River northern drainage area located in northwest Iowa. A separate essay illustrates and discusses landform origins in the Floyd River-Little Sioux River drainage divide area in Woodbury and Monona Counties. The Floyd River and Little Sioux River […]

Little Sioux River-North Raccoon River drainage divide area landform origins in Cherokee, Buena Vista, and Sac Counties, Iowa, USA

Abstract: The Little Sioux River-North Raccoon River drainage divide area in Cherokee, Buena Vista, and Sac Counties, Iowa was eroded during immense south oriented floods from a rapidly melting North American ice sheet. Initially the melt water floods flowed across Cherokee, Buena Vista, and Sac Counties in a southeast direction toward what was then an actively […]

Little Sioux River-Boyer River drainage divide area, western Iowa, USA

Abstract: This essay uses topographic map evidence to interpret Little Sioux River-Boyer River drainage divide area landform origins. The Little Sioux and Boyer Rivers are located in western Iowa and are southwest and south-southwest oriented Missouri River tributaries. Between the Little Sioux River and Boyer River are the south and southwest oriented Maple River and […]