Mentasta Lake Census Designated Place is a census located in Copper River County, Alaska. It appears on the Nabesna D-6 NE USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 3,793.49 feet (1,156.26 m) above sea level. The nearest populated place is Mentasta Lake, approximately 9.1 miles to the WSW.