Abstract: Multiple deep passes crossing the present-day east-west continental divide and numerous south-oriented tributaries flowing to the present-day north-oriented Gallatin, Madison, Jefferson-Beaverhead-Red Rock, and Missouri Rivers provide evidence the Gallatin, Madison, and Jefferson-Beaverhead-Red Rock valleys originated as diverging channels in a large-scale south-oriented anastomosing channel complex that was subsequently reversed to form the present-day north-oriented Gallatin, […]
Category archives for Montana
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 […]
Abstract: This essay uses topographic map evidence to interpret landform origins in the region between the Lamar River drainage basin and the Clarks Fork Yellowstone River drainage basin in the Absaroka Range along the Yellowstone National Park eastern boundary, Wyoming and Montana. The Lamar River flows in a west and northwest direction in Yellowstone National […]
Abstract: This essay uses topographic map evidence to interpret landform origins between the Madison River and Gallatin River in the northwest Yellowstone National Park region, Montana and Wyoming. The northwest Yellowstone National Park region as defined here includes the Yellowstone National Park northwest corner and the region west to the north-northwest oriented Madison River valley. […]
Abstract: This essay uses topographic map evidence to interpret landform origins between the Madison River and Gallatin River in the middle Madison Range area located in Madison and Gallatin Counties, Montana. The Madison River flows in north direction from near the northwest corner of Yellowstone National Park on the west side of the Madison Range […]
Abstract: This essay uses topographic map evidence to interpret landform origins between the Madison River and Gallatin River in the northern Madison Range and south of Three Forks in Madison and Gallatin Counties, Montana. The Madison River flows in north direction from Ennis Lake through Bear Trap Canyon on the west side of the Madison […]
Abstract: This essay uses topographic map evidence to interpret landform origins between the Ruby River and the Madison River in the Gravelly Range, Madison County, Montana. The Gravelly Range is located south of the Tobacco Root Mountains between the north oriented Madison and Ruby River valleys. The Madison River is east of the Gravelly Range […]
Abstract: This essay uses topographic map evidence to interpret landform origins between the Jefferson River and the Madison River in Madison and Gallatin Counties, Montana and focuses on areas east of the north-northeast oriented South Boulder River, which flows from the high Tobacco Root Mountains to join the Jefferson River north of the Tobacco Root […]
Abstract: This essay uses topographic map evidence to interpret landform origins between the Jefferson River and the South Boulder River in the Tobacco Root Mountains, Madison County, Montana. The Jefferson River is formed west of the Tobacco Root Mountains at the confluence of the south and northeast oriented Big Hole River, the north-northeast oriented Beaverhead […]
Abstract: This essay uses topographic map evidence to interpret landform origins between the Beaverhead River and the Ruby River in the Ruby Range, Madison County, Montana. The Beaverhead River flows in a north-northeast direction west of the Ruby Range and north of the Ruby Range joins the Ruby River and south and northeast oriented Big […]
Abstract: This essay uses topographic map evidence to interpret landform origins between the Beaverhead River and the Red Rock River in Beaverhead County, Montana. The Red Rock River flows in a west and north-northwest direction to the north-northeast oriented Beaverhead River. The Blacktail Mountains are an upland region located between the north-northwest oriented Red Rock […]
Abstract: This essay uses topographic map evidence to interpret landform origins between the north oriented Ruby River and the west oriented Red Rock River in Beaverhead and Madison Counties, Montana. The Red Rock River flows in the east-to-west oriented Centennial Valley at the south end of the study region and further west turns to flow […]
Abstract: This essay uses topographic map evidence to interpret landform origins between the West Fork Madison River and the Red Rock River in Beaverhead and Madison Counties, Montana. The West Fork Madison River flows in a southeast and northeast direction to join the north oriented Madison River, which at Three Forks, Montana joins the Gallatin […]
Abstract: This essay uses topographic map evidence to interpret landform origins along the continental divide between the Madison River and Henrys Fork west of Yellowstone National Park. The Madison River flows in a west and northwest direction from Yellowstone National Park along the north edge of this essay’s study region and then turns to flow […]
Abstract: This essay uses topographic map evidence to interpret landform origins along the continental divide between the Red Rock River in Beaverhead County, Montana and Henrys Fork in Clark and Fremont Counties, Idaho. The continental divide segment studied in this essay is located along the Centennial Mountains east end. The Centennial Mountains are a west-to-east […]
Abstract: This essay uses topographic map evidence to interpret landform origins along the continental divide between the Red Rock River in Beaverhead County, Montana and Camas Creek in Clark County, Idaho. This continental divide segment is located in the Centennial Mountains east of Monida Pass. The Centennial Mountains are a west-to-east oriented mountain range, which […]
Abstract: This essay uses topographic map evidence to interpret landform origins along the continental divide between the Red Rock River in Beaverhead County, Montana and Medicine Lodge Creek in Clark County, Idaho. The continental divide segment investigated in this essay extends from Bannack Pass in the west to Monida Pass in the east and is […]
Abstract: This essay uses topographic map evidence to interpret landform origins in the Beaverhead County, Montana Tendoy Mountains between the north-northwest oriented Red Rock River and north oriented Medicine Lodge Creek. Medicine Lodge Creek flows along the Tendoy Mountains west flank while the Red Rock River flows along the Tendoy Mountains east flank with water […]
Abstract: This essay uses topographic map evidence to interpret landform origins along the continental divide between Medicine Lodge Creek in Beaverhead County, Montana and the Lemhi River in Lemhi County, Idaho. The continental divide follows the crest of the Beaverhead Mountains. The Lemhi River flows in a north-northwest direction on the west side of the […]
Abstract: This essay uses topographic map evidence to interpret landform origins in the southeast Pioneer Mountains region between Grasshopper Creek and Beaverhead River in Beaverhead County, Montana. The Beaverhead River is today a north-northeast oriented drainage route east of the Pioneer Mountains and is joined by the north, northeast, southeast, south, and northeast oriented Big […]
Abstract: This essay uses topographic map evidence to interpret landform origins south of the Pioneer Mountains between the Big Hole River and Beaverhead River in Beaverhead County, Montana. The Big Hole River flows in a north direction along the Pioneer Mountains west flank and then makes a U-turn to flow in a southeast and south […]
Abstract: This essay uses topographic map evidence to interpret landform origins along the continental divide between the Horse Prairie Creek drainage basin in Beaverhead County, Montana and the Lemhi River drainage basin in Lemhi County, Idaho. The east-west continental divide in the region is located along the crest of the Beaverhead Mountains and serves as […]
Abstract: This essay uses topographic map evidence to interpret landform origins along the continental divide between the Big Hole River in Beaverhead County, Montana and the Lemhi River in Lemhi County, Idaho. The east-west continental divide in the study region is located along the crest of the Beaverhead Mountains and serves as the state boundary. […]
Abstract: This essay uses topographic map evidence to interpret landform origins in the Pioneer Mountains between the north-oriented Wise River and the south-oriented Big Hole River in Beaverhead County, Montana. The Big Hole River flows in a north and northeast direction along the Pioneer Mountains west flank and then makes a U-turn to flow in […]
Abstract: This essay uses topographic map evidence to interpret landform origins in the Pioneer Mountains between the north oriented Big Hole River and Wise River in Beaverhead County, Montana. The Big Hole River flows in a north direction along the Pioneer Mountains west flank and then makes a U-turn to flow in a southeast and […]
Missouri River drainage basin landform origins research project 