Abstract: This essay uses topographic map interpretation methods to determine landform origins in the South Fork Dearborn River-Missouri River drainage divide area located in Lewis and Clark County, Montana. No effort has been made to introduce evidence from other sources. The Missouri River flows in a north-northwest and north-northeast direction along the study region’s east […]
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Abstract: This essay uses topographic map evidence to interpret Dearborn River-South Fork Dearborn River drainage divide area landform origins in Lewis and Clark County, Montana. The Dearborn River originates in the high Lewis and Clark Mountain Range along the east-west continental divide and flows in a southeast direction with some northeast-oriented segments to join a […]
Missouri River drainage basin landform origins research project 