Pack it in & pack it out - Bring a small grocery sack to gather any trash you might find.
Stay on trails - Walk single file in the middle of the trail, especially when wet or muddy. Never cut across a switchback. Where no trail is available, travel on durable surfaces such as rocks and dry grass.
Dispose of human waste properly - At least 200 feet from any water supply, dig a cathole 6-8 inches deep. Cover hole. Use provided facilities when available.
Protect wildlife from human food - Properly store all food away from animals to help prevent problems with wildlife's delicate balance.
Minimize campfire impact - Campfires leave scars for many years. Whenever possible, use a lightweight stove for cooking and a lantern for light. Where campfires are permitted, use an existing fire pit. A simple fire pit such as the FP-24 Outdoor Campfire Pit is excellent for contained fires. Keep all fires small and use only small sticks to ensure a complete burn. Completely extinguish your fires and scatter the cool ashes.
Be considerate of other visitors - Camp in places that will have the least impact on plants. Respect other visitors and protect their outdoor experience. National parks are full of designated campsites with proper amenities. Don't overwhelm the sounds of nature with other sounds.
Set up camp properly - When picking a campsite in the wild, find a durable surface at least 200 feet from any water source. Avoid the temptation to move logs and make your own furniture. Don't dig unnecessary holes.
Before you leave - Take one final walk around your campsite. Ensure that the area looks like it did before you came. Make sure fires are out and ashes are spread. Make sure all garbage is picked up