KRVR was the first radio station licensed to Calaveras County when it signed on in 1995. Threshold Communications was awarded the license for KRVR in one of the last "comparative hearings" at the [FCC]. The River aired a Smooth Jazz format in its early years, and it received the "Smooth Jazz Station of The Year" award from Radio & Records magazine in 2006.
In March 2011, KRVR changed format to Adult Hits, and one year later fine tuned the format to Classic Hits of the 1960s, 1970s and 1980s, although with a broader playlist than similar stations. The two principals of Threshold Communications each takes a weekend DJ shift, and perform duties as General Manager, Program Director & Music Director of KRVR.
In early 2018, The River began airing a syndicated program entitled "The Beatles Years," which airs Sunday afternoons from 4 to 5 pm. That summer, KRVR started adding a little early 1990s music, but kept playing songs from the 1960s, 1970s, and 1980s.
