Welcome to the Yellowstone Fitness family!  Our owners live in Billings & understand Billings' fitness. As a long time resident, Owner and Manager Don Christensen knows that when it comes to Billings fitness, good enough just isn’t good enough. That’s why the team of experienced professionals at Yellowstone Fitness strives every day toward goals to exceed the standards of fitness in Billings. Because for them, Yellowstone Fitness is more than fitness, it’s a way of life.