AY Honors/Camping/Take pictures leave footprints
"Take nothing but pictures, leave nothing but footprints" is pretty self-explanatory. It means you do not disturb nature while you are out enjoying it. If you see a pretty rock, leave it there for someone else to enjoy. If you eat a piece of candy on the trail, don't toss the wrapper — take it with you.
There are a few exception to both these rules. If you see trash, by all means, take it. Throw it in the trash when you get to a proper trash receptacle. Also be aware that footprints are not always harmless. Many tundra plants that take years to grow can be destroyed by a single footprint. Stay on the trail.
One of the most important ways people leave their mark on the land is by building a campfire. For "no trace" camping, bring a camp stove. Unfortunately, the campfire is one of the primary attractions for many people, so it is not easy to follow this advice. If your campsite has a fire ring or an existing fire pit, use that. If it does not and you must have a campfire, lay a small tarp on the ground and cover it with six to eight inches of mineral sand. Mineral sand is sand containing no organic material, and can be found on a beach or where a large tree has fallen over and raised a rootwad. The sand must be piled deep so the heat does not affect the tarp beneath. Stop putting new fuel on the fire well before you are ready to put it out, and push in the ends of sticks that have not yet burned. Allow them to burn down to white ash. When you are ready to leave, douse the fire well, and spread the ashes over a wide area. Return the sand to the place where you found it and pack up your tarp.
"Take nothing but pictures, leave nothing but footprints" is a good summary of the more common Leave No Trace 7 Principles. Memorize and practice these. 1) Plan ahead and prepare. 2) Travel and camp on durable surfaces. 3) Dispose of waste properly. 4) Leave what you find. 5) Minimize campfire impacts (be careful with fire). 6) Respect wildlife. 7) Be considerate of other visitors. © 1999 by the Leave No Trace Center for Outdoor Ethics: www.LNT.org.