 In 1977, KLZ-FM changed their call letters to KAZY (now at 93.7 FM in Cheyenne, Wyoming) and continued with a rock format until April 20, 1994, when KBPI took over the 106.7 frequency, moving from 105.9 (now KALC).In December 2017, iHeartMedia re-aligned multiple stations in the Denver, Colorado Springs, Fort Collins, and Cheyenne markets in order to form a trimulcast (which was later split up on January 28, 2019) of KBPI on the 107.9 frequency.To facilitate the move for the main signal, on the 1st, KYWY (an adult contemporary station in Cheyenne, Wyoming, which was acquired by iHeart in 2016) moved its existing format to an HD Radio subchannel of KOLT-FM and its analog translator on 97.1, allowing KPAW to move its classic rock format and call letters to the 92.9 signal four days later.