creek channel within the canyon; and flood-plain gravels, over which the stream flows in times of high water. In addition to these deposits, which were transported and deposited chiefly by running water, or by water and ice, there is a thin veneer of morainal debris that is found throughout the valley, and even on the mountain tops. This deposit is made up of material that is in large part foreign to Young Creek and that has been transported a long distance, much of it from the upper Chitina Valley. See also List of rivers of Alaska References Rivers of Alaska Rivers of Copper River Census Area, Alaska Rivers of Unorganized Borough, Alaska