The essential guide for enjoying the outdoors without harming the environment. Details the seven core principles of Leave No Trace ethics and practices - Covers hiking, campfires, food storage, and personal hygiene - Endorsed by the USDI National Park Service, Bureau of Land Management, Fish & Wildlife Service, U.S. Geological Survey, and the USDA Forest Service Jeffrey L. Marion, PhD, was a founding member of the Leave No Trace board of directors and spent a decade as chairman of the Educational Review Committee, helping to develop LNT's principles, outdoor practices, courses, and educational materials. He is currently employed by the U.S. Geological Survey and stationed at Virginia Tech University, where he is also an adjunct professor in the College of Natural Resources and Environment. He lives in Blacksburg, Virginia. Leave No Trace In The Outdoors