The station was started by Roy Henderson in April 1979 at 97.7, playing a CHR/Top 40 format as "Kilt 98". Due to its limited signal, the station found it difficult to compete with the high-powered WJML-FM and WKHQ, and so in 1981 the station changed format to automated country as "Country 98". The station added an AM station at 1420 in 1982, which simulcasted the FM's format. The AM station, WKLT, was a 500-watt daytimer. In 1982, WKLT became the Grand Traverse region's first AOR station, when Roy Henderson moved to Texas full-time, selling WKLT to a Pepsi-Cola distribution company based in North Dakota. The new AOR format was the first of its kind in northern Michigan and gave listeners an alternative to the Top 40 fare played on WJML and WKHQ. It was during this period that WKLT would be known to its listeners as "98 Rock". In 1991, WKLT moved to 97.5, boosting power to 32,000 watts and the company purchased WJML in Petoskey. The company spun off WJML/1110 to local broadcaster Rick Stone and WKLT to the Kalkaska School system, who has since shut the station down for good. WJML-FM 98.9 became WKLZ and Double Rock KLT was born. It can be heard as far north as Sault Ste Marie, Ontario, Canada, as far west as Manistique, and as far south as Lake City. Throughout the 1990s, the station, and Northern Broadcast, were managed by Richard Dills of Grand Rapids. Dills, former General Manager of WKLQ-FM modeled WKLT after WKLQ even going so far as to copy the KLQ logo for KLT. In 2005, Charlie Ferguson took over the GM position at Northern Broadcast after a long stint in Minot, North Dakota, Northern Radio's home city. The Double Rock slogan was changed to "The Rock Station" reflecting the long history of the station. With the change, listeners have noted that the station has become more heavily gold-based than before but that they still plays some currents as well. Mid-day personality and Program Director Terri Ray has become a Northern Michigan icon. She came to KLT in January 1984. She hosts the highly rated noon time request show "Lunch at the Leetsville Cafe" for 3 plus decades. Terri Ray is also the host of a local music feature called "KLT's Garage" that airs on Sunday night's at 9. WKLT has featured the House Of Blues Radio Hour since the program went into syndication in the early 1990s, along with the daily Blues Breaks which are hosted by Elwood Blues AKA Dan Akroyd. In August 2008 a construction permit was granted for FM translator W281AY 104.1 Alpena. On February 25, 2020 WKLT switched simulcasters from WKLZ-FM to WBCM 93.5 FM Boyne City.
