KWRR (90.3 FM) is a Class A low-power local non-commercial educational (NCE) radio station licensed to HEART BUTTE, MT. Broadcasting with an effective radiated power of 580 watts and antenna height of 103 meters HAAT, its signal reaches approximately 55 km to the radio horizon. The station broadcasts in HD Radio digital format. The station is owned by Business Council of the Northern Arapaho Tribe. It broadcasts a Defunct (was public radio) format.
