Feather Plume Falls is an ephemeral waterfall in Glacier National Park, Montana, descending from Grinnell Glacier above Cataract Creek in the Many Glacier region on the northeast slopes of Mount Gould. It falls about 1,500 feet in several major stages, including a highest single drop estimated at 1,080 feet. Fed by glacier melt, it does not flow as a constant year-round cascade, and its volume changes with conditions. The falls are notable for their dramatic height and for the way their seasonal, glacier-fed character ties them directly to the surrounding alpine landscape.