On Wednesday 20th July 2022 Keith KN6TNT a radio amateur from S Pasadena, CA reached the summit of Mammoth Mountain and activated this summit on the amateur radio bands for the Summits on the Air (“SOTA”) group.
He made 7 contacts in total working on the 20 metre HF amateur radio band.
The summit of Mammoth Mountain is 3362 metres (11030 feet) asl. It has a rating of 10 points on the SOTA groups database.