Alco CreekAlco Creek is a stream in the U.S. state of Oregon. It is a tributary to Elk Creek.Alco Creek was named after William Alcoe, a pioneer citizen.CourseAlco Creek rises in a spring about 3 miles southeast of Alco Rock in Jackson County, Oregon, and then flows southeast to join Elk Creek about 2 miles northwest of Tatouche Peak.WatershedAlco Creek drains of area, receives about 45.2 in/year of precipitation, has a wetness index of 273.07, and is about 15% forested.