The station went on the air as KROE-FM on December 5, 1977, becoming Sheridan, Wyoming's first FM radio station. KROE-FM's 20,000 Watt transmitter was located in the new KROE building and the signal was broadcast to the Sheridan area from an antenna mounted on the KROE tower. Through most of the 1980s and the early to mid 1990s, KROE-FM aired various satellite-delivered Adult Contemporary music formats. Responding to local demand, the format was shifted to a more rock-oriented lineup toward the later part of that decade. On June 30, 1997, the station changed its call sign to KZWY. Along with the call letter change, the music format was solidified with a locally programmed rock format and a new slogan: "Rock and Roll from Yesterday and Today." Also in the late 1990s, the station was moved to a new transmitter site at the top of the Big Horn Mountains and the power was increased to 75,000 Watts. This allowed the station to cover a large portion of Northeast Wyoming, including most of Sheridan, Johnson and Campbell counties. In 2003, the slogan was modified to "Wyoming's Best Rock," while the format continued to be a mix of classic and new rock. Most of the programming on KZWY remained locally generated, but some nationally syndicated weekend shows were added including The Beatle Years, Flashback, The House of Hair, The Tour Bus and Harddrive. In 2012, Lovcom, Inc. signed on KOWY at 102.3 FM, and the Adult contemporary format which had been airing on KLQQ-HD2 was moved to this new station. "Magic 95.9" became "Magic 102.3." Meanwhile, the hybrid rock library on KZWY was split into two distinct formats. At the end of May 2012, KZWY began airing a straight classic rock format with an accompanying slogan change to "Wyoming's Classic Rock," while the new rock was moved to the newly available KLQQ-HD2, which was relaunched as an Active Rock station branded "95.9 The Edge." KZWY began broadcasting in HD Radio in the fall of 2005. Initially, a heavier rock format called "Nitro" was aired on the HD-2 channel and ESPN Radio on HD-3. Various HD multicast format changes occurred over the next few years, eventually settling on a Waitt Radio NetworksOldies format on HD-2 and eliminating the HD-3 channel. The Oldies channel is called "Oldies 105.9" because it is rebroadcast on two analog translators, both at 105.9 FM. In 2013, failures in the HD equipment on KLQQ forced a move of the Active Rock format from KLQQ-HD2 to KZWY-HD3. This channel is rebroadcast on translator K240DW as "95.9 The Edge." As of 2014, KZWY is the only station in the Lovcom group broadcasting in HD Radio. In February 2017, KZWY added an HD-4 channel carrying a non-political talk format - also rebroadcast on a translator - branded as "Smart Talk 106.3"
Translators
K240DW rebroadcasts KZWY's HD-3 programming, branded as "95.9 The Edge". K290BL and K290BM both rebroadcast KZWY's HD-2 programming, which is branded as "Oldies 105.9" to reflect the dial position of the translators on which it appears. K292DZ rebroadcasts KZWY's HD-4 programming, which is branded as "Smart Talk 106.3".
