The Mountain 93.9, with the call-sign KMGN, is a commercial radio station serving the Flagstaff and Prescott areas under the ownership of Roger and Nancy Anderson (Flagstaff Radio, Inc.). It broadcasts a Mainstream Rock music format.

Its weekly schedule features music playlists and live shows in which the station's in-house team of DJs showcase their selection of the best mainstream Rock music and its subgenres from today and from the past. The Mountain 93.9's lineup also features entertaining segments, contests and giveaways, and short news reports with the latest updates and news from the entertainment and music showbiz.

KMGN live streams globally and without geographical restrictions through the internet, allowing people anywhere in the world to listen live to its music selections and programming.