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 Jefferson River
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 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 Moose Creek and the Big Hole River in Silver Bow and Madison Counties, Montana. The Big Hole River flows in a north, northeast, southeast, and south direction around the Pioneer Mountains in Beaverhead County and then makes a large U-turn in Madison County […]
Abstract: This essay uses topographic map evidence to interpret landform origins in the region between Silver Bow Creek and the Big Hole River along the east–west continental divide in Silver Bow County, Montana. The east-west continental divide crosses the study region in roughly a west to east direction with north oriented drainage north of the […]
Abstract: This essay uses topographic map evidence to interpret landform origins in the region between Bison Creek and the Boulder River in Jefferson County Montana. The Boulder River, which after flowing in a north direction, turns to flow in an east, southeast, and south-southwest direction to join the east oriented Jefferson River, which flows to […]
Missouri River drainage basin landform origins research project 