 The Little Elk River rises in Morrison County and flows east to discharge into the Mississippi just north of Little Falls, picking up the flow of the South Branch of the Little Elk River at Randall.The Mississippi also receives the flow of the Nokasippi River just above Camp Ripley.The Skunk River rises in the northeast part of the county, and flows west-southwest through the lower central part of the county, discharging into the Platte southeast of Little Falls.