The Middle Fork South Platte River is a tributary of the South Platte River, approximately 50 miles (80 km) long, located in central Colorado in the United States. The river provides part of the drainage of South Park, the intermontane grassland basin located between the Front Range and the Mosquito Range in the Rocky Mountains southwest of Denver.
The river rises in northwestern Park County, at the continental divide along the north side of Mount Lincoln, just west of Hoosier Pass. It descends to the southeast in a narrow valley along State Highway 9 past Alma, emerging into the northwest ...
Click any point for details. Sections without stored geometry are drawn as straight put-in → take-out lines — actual courses follow the river.