 The upper North Saskatchewan River contains cutthroat trout (although not native), and bull trout

Like all rivers, the North Saskatchewan is subject to periodic flooding, beginning with rapid snowmelt in the mountains or prolonged periods of rain in the river basin.With the establishment of permanent communities along the river's course, and the rise of an administrative/government structure, records exist recording floods in the North Saskatchewan for the past century.The Bighorn Dam, constructed in the early 1970s near Nordegg, Alberta, and the Brazeau Dam, constructed in the mid-1960s, have not reduced flooding potential on the North Saskatchewan River (Alberta Environment 1981) 

List of notable flood years



The flood of 1899

The river peaked at a stage of with an estimated peak instantaneous discharge of .