A mountain biking trail in southwest Montana cuts across the landscape at a local trail center. Some wild places in Greater Yellowstone and other corners of the Northern Rockies hold rare wildlife that is ultra-sensitive to human disturbance. "We know that building a new trail is an act that can never be erased from the landscape," Servheen writes. "Remembering that the landscape is more important than getting in a few sick turns helps us decide whether expanding our footprint is really worth the cost. Thinking and acting with respect for nature can significantly slow the recreation economy's growing footprint." Photo courtesy Calvin Servheen