KKFN (104.3 FM, "104.3 The Fan") is a sports radio station serving the Denver-Boulder area. Operated by Bonneville International (as part of a time brokerage arrangement deal through the Pikes Peak Trust and Entercom), the outlet broadcasts with an effective radiated power of 91 kW and is licensed to Longmont, Colorado. Its studios are located in Greenwood Village, and the transmitter is in Lakewood on Green Mountain.