While you are outside attending events, hiking, camping, fishing or whatever activity you enjoy, use these easily understood 7 principles of minimum impact practices. Leave No Trace is a national nonprofit organization that protects the outdoors by empowering everyone through science, hands-on training and simple guidelines. The framework can be applied anywhere — from remote wilderness areas, to local parks and even in your backyard. They are essential in minimizing the impact of natural resources to ensure a sustainable future for wildlife and natural areas.