The following essay briefly outlines alternative hypotheses considered and evidence investigated prior to undertaking the Missouri River drainage basin landform origins research project, which is based entirely on previously unstudied topographic map evidence. Each phase of my study described here is documented by communications submitted to the North Dakota Academy of Science and/or by abstracts […]
Category archives for South Dakota
A geomorphic history based on topographic map evidence Abstract: This essay provides an overview of more detailed essays describing Moreau River drainage basin landform origins. The detailed essays can be found under Moreau River on this website’s sidebar category list. The Moreau River drainage basin is located in northwest South Dakota. To the west is […]
A geomorphic history based on topographic map evidence Abstract: The Little Missouri River originates in northeast Wyoming and flows in a northeast and north direction across the southeast corner of Montana and the northwest corner of South Dakota into southwest North Dakota. In west-central North Dakota the north-oriented Little Missouri River makes a turn to […]
A geomorphic history based on topographic map evidence Abstract: The Bad River drainage basin is located in western South Dakota. The Bad River originates east of the Black Hills near Wall, South Dakota and flows in an east-northeast and northeast direction to join the southeast-oriented Missouri River near Fort Pierre, South Dakota as a barbed […]
A geomorphic history based on topographic map evidence Abstract: The White River originates as a southeast-oriented river in northwest Nebraska and then turns to flow in a northeast direction into western South Dakota before turning to flow in a generally east direction to the southeast-oriented Missouri River. The White River drainage basin includes most of […]
A geomorphic history based on topographic map evidence Abstract: This essay provides an overview of more detailed essays using topographic map evidence to illustrate and describe Belle Fourche River drainage basin landform origins. The detailed essays can be found under Belle Fourche River on this website’s sidebar category list. The Belle Fourche River drainage basin […]
A geomorphic history based on topographic map evidence Abstract: The Cheyenne River drainage basin is located in western South Dakota and eastern Wyoming and includes the Black Hills upland region. The Cheyenne River originates in eastern Wyoming and flows in a southeast and northeast direction around the Black Hills south end, while a major Cheyenne […]
This overview essay provides highlights from more detailed essays using topographic map evidence to illustrate and interpret Black Hills landform origins. Detailed essays can be found under Black Hills region on this website’s sidebar category list. The Black Hills are highland region located in western South Dakota and northeast Wyoming and rise 1000 meters or more […]
A geomorphic history based on topographic map evidence Abstract: This overview essay provides highlights from more detailed essays using topographic map evidence to interpret James River drainage basin landform origins. The detailed essays can be found under James River on this website’s sidebar category list. The James River originates on the Missouri Coteau northeast edge […]
A geomorphic history based on topographic map evidence Abstract: This essay provides an overview more detailed essays using topographic map evidence to interpret Big Sioux River drainage basin landform origins. The detailed essays can be found under Big Sioux River on this website’s sidebar category list. All interpretations in this overview essay and in the […]
A geomorphic history based on topographic map evidence Abstract: This essay is an overview of information contained in more detailed essays describing topographic map evidence found along drainage divides between South Dakota Missouri River tributaries. The detailed essays can be found under SD Missouri River on this website’s sidebar category list. Overview essays and related […]
A geomorphic history based on topographic map evidence Abstract: The Little Missouri-North Fork Grand River drainage divide area is located in northwest South Dakota and southwest North Dakota, USA. Although detailed topographic maps of the Little Missouri-North Fork Grand River drainage divide area have been available for more than fifty years detailed map evidence has […]
A geomorphic history based on topographic map evidence Abstract: The North Fork Grand River drainage basin is located in southwest North Dakota and northwest South Dakota, USA. Although detailed topographic maps of the North Fork Grand River drainage basin have been available for more than fifty years detailed map evidence has not previously been used […]
A geomorphic history based on topographic map evidence Abstract: The Little Missouri River-South Fork Grand River drainage divide area is located in northwest South Dakota, USA. Although detailed topographic maps of the Little Missouri-South Fork Grand River drainage divide area have been available for more than fifty years detailed map evidence has not previously been […]
A geomorphic history based on topographic map evidence Abstract: Boxelder Creek is a northeast-oriented tributary to the north and northeast-oriented Little Missouri River. Landforms located along the Boxelder Creek-Little Missouri River drainage divide provide important clues to the origin of eastern Montana and western South Dakota landforms. Although detailed topographic maps of the Boxelder Creek-Little […]
A geomorphic history based on topographic map evidence Abstract: The Little Missouri-Moreau River drainage divide area is located in northwest South Dakota, USA. Although detailed topographic maps of the Little Missouri-Moreau River drainage divide area have been available for more than fifty years detailed map evidence has not previously been used to interpret the region’s […]
A geomorphic history based on topographic map evidence Abstract The South Fork Grand River-Moreau River drainage divide area is located in northwest South Dakota, USA. Although detailed topographic maps of the South Fork Grand River-Moreau River drainage divide area have been available for more than fifty years detailed map evidence has not previously been used […]
A geomorphic history based on topographic map evidence Abstract: The eastern Grand River-Moreau River drainage divide area is located in northwest South Dakota, USA. Although detailed topographic maps of the eastern Grand River-Moreau River drainage divide area have been available for more than fifty years detailed map evidence has not previously been used to interpret […]
A geomorphic history based on topographic map evidence Abstract: The Cheyenne River-White River drainage divide area discussed here is located in western South Dakota, USA. Although detailed topographic maps of the Cheyenne River-White River drainage divide area have been available for more than fifty years detailed map evidence has not previously been used to interpret […]
A geomorphic history based on topographic map evidence Abstract: The Bad River-White River drainage divide area discussed here is located in western South Dakota, USA. Although detailed topographic maps of the Bad River-White River drainage divide area have been available for more than fifty years detailed map evidence has not previously been used to interpret […]
A geomorphic history based on topographic map evidence Abstract: The Bad River-Medicine Creek and Medicine Creek-White River drainage divide area discussed here is located in South Dakota, USA. Although detailed topographic maps of the Bad River-Medicine Creek and Medicine Creek-White River drainage divide area have been available for more than fifty years detailed map evidence […]
A geomorphic history based on topographic map evidence Abstract: The Little Missouri River-Belle Fourche River drainage divide area northeast of Stoneville Flats discussed here is located in Montana’s southeast corner, where Montana, South Dakota and Wyoming meet. Although detailed topographic maps of this Little Missouri River-Belle Fourche River drainage divide area have been available for […]
A geomorphic history based on topographic map evidence Abstract: The Moreau River-Cherry Creek drainage divide area discussed here is located in western South Dakota, USA. Although detailed topographic maps of the Moreau River-Cherry Creek drainage divide area have been available for more than fifty years detailed map evidence has not previously been used to interpret […]
A geomorphic history based on topographic map evidence Abstract: The Moreau River-Cheyenne River east end drainage divide area discussed here is located in western South Dakota, USA and is east of Dupree, South Dakota. Although detailed topographic maps of the Moreau River-Cheyenne River east end drainage divide area have been available for more than fifty […]
A geomorphic history based on topographic map evidence Abstract: The Standing Rock Indian Reservation Cannonball River-Grand River drainage divide area discussed here is located in along the South Dakota-North Dakota border, USA. Although detailed topographic maps of the Cannonball River-Grand River drainage divide area have been available for more than fifty years detailed map evidence […]
Missouri River drainage basin landform origins research project 