Qatxayagum-tanasuu is a island located in Aleutians West County, Alaska. It appears on the Atka C-1 SW USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 30.00 feet (9.14 m) above sea level. The nearest populated place is Tanaangis Tanadgusii (historical), approximately 6.2 miles to the E.