Ch'ak'nileghtnu is a stream located in Matanuska-Susitna County, Alaska. It appears on the Anchorage B-8 NE USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 23.04 feet (7.02 m) above sea level. The nearest populated place is Knik, approximately 1.2 miles to the NE.