Wikipedia
KYSL (93.9 FM) also known on air as Krystal 93 is a radio station broadcasting an Adult Album Alternative format. Licensed to Frisco, Colorado, USA. The station is currently owned by Krystal Broadcasting, Incorporated and features programing from AP Radio. KYSL transmits on 93.9 in Summit County (which includes Frisco, Dillon, Keystone, Breckenridge), 93.1 in Eagle County (Vail area), and 92.3 in Clear Creek County (Loveland Ski Area).
Krystal 93 first signed on in May 1988, and during its first 11 years on the air, the station was broadcasting an Adult Contemporary format. In 2001 it flipped to its current format of Adult Album Alternative while retaining the Krystal branding and the KYSL call letters.
Krystal 93 owns the highest FM radio transmitter in North America. Krystal 93 is a lifestyle oriented, live radio station targeting locals and visitors who love good music and want current information (road and traffic conditions, local, regional and national news). Krystal 93 also believes in a strong commitment to local non-profit organizations and events. Krystal's online stream allows listeners all over the world to tune in.