KGRR

KGRR (97.3 FM) is a radio station broadcasting an active rock format to the Dubuque, Iowa, United States, area. The station is licensed to Radio Dubuque, Inc. Its transmitter is located alongside U.S. Highway 20 between Dubuque and Peosta on top of the U.S. 20 Bluff. KGRR was used as the radio station call letters in an episode of 'The Twilight Zone' Nightsong (TV episode 1986 #2.6). The frequency on the show was 93.3 FM and it was located somewhere in California.

On March 1, 2010, KGRR shifted from a classic rock format to a mainstream rock format as "97.3 The Rock".