The station began broadcasting in 1983 as CFHC on the AM band at 1450 kHz in Canmore and CFHC-1 at 1340 kHz in Banff. CFHC was a semi-satellite of CFAC AM in Calgary until 1992.
CFHC has been through different ownerships and programming. In 1997, CFHC was given approval from the Canadian Radio-television and Telecommunications Commission (CRTC) to convert to the FM band to 106.5 MHz in Canmore (CHMN), with a rebroadcast transmitter on the same frequency at 106.5 FM in Banff, known as (CHMN-FM-1). After the station moved to the FM band, the old AM signals were discontinued.
Undated: Both transmitters were briefly known as CJMT-FM, until it was changed to its current callsign CHMN.
CHMN Canmore and its transmitter CHMN-FM-1 in Banff are owned by Rogers Radio at 106.5 FM.