Calendar of Events March 2019: 23: Crystal Mountain – Retro Weekend – March 23, 2019 April 2019: 20: Crystal Mountain – Crystal Classic Golf Tournament – April 20, 2019 May 2019: 25: Crystal Mountain – Michigan Beer & Brat Festival – May 25, 2019 August 2019: 23: Porcupine Mountains Music Festival – August 23, 24, 25, 2019
