The station signed on in 1992 as "K105" and was essentially a free-form rock station. By 1998, "K105" had been largely dropped in favor of "The Mountain," but the format stayed the same. In January 2001, Pamal Broadcasting agreed to pay Killington Broadcasting $1.65 million for the station.
The format was kept the same until October 31, 2003, when the station flipped to "The Peak," a more structured Triple A format, although the music did lean more alternative than most standard Triple A's. Spider Glenn, Kerry Chambers and all but one DJ were fired due to the format change. Mitch was the only one to survive the house-cleaning. He moved to afternoons and Joan Holliday was brought aboard to fill the mid-day position. Eventually, Poptart Dave was hired to helm the morning show.
In April 2005, Poptart Dave left the station and Mitch was moved to mornings. James was hired and took over afternoons in May 2005.
Mitch left for other opportunities in June 2006 and James shifted to mornings. Tim Taylor, featured on weekends, handled the afternoon slot. In November 2006, Uncle Dave was hired as morning show host and James went back to afternoons.