Non-Member Access 18 & Older Until Further Notice. The Summit Medical Fitness Center is Montana’s most comprehensive fitness and wellness facility. We provide more fitness options and more value. Our personal trainers, wellness coaches, dietitians, nurses, and physical and occupational therapists are here to help you achieve your fitness, wellness and rehabilitation goals. With close to 8,500 members, you’ll also find The Summit to be a great place to connect with others who share your passion for fitness and inspired health. At The Summit, we excel at helping you be more.