1.  Plan Ahead and Prepare

2.  Travel & Camp on Durable Surfaces

3.  Dispose of Waste Properly

4.  Leave What You Find

5.  Minimize Campfire Impacts

6.  Respect Wildlife

7.  Be Considerate of Other Visitors 

Be Considerate...

In many respects it all boils down to Number 7, "Be Considerate of Other Visitors."  Despite the controls in place to limit Grand Canyon backcountry traffic, it all comes down to how well the humans who visit respect the environment in which they are traveling.  There's a concept I was taught long ago as a Boy Scout that serves to crystallize the intent of Leave No Trace, and that is to leave the trail you travel and the camp you depart in better condition than it was in when you arrived.

We seldom emerge from a trip without a pocketful of trash left by others. The good news is that these days, the trash typically amounts to small remnants of trail-food packaging like those shiny mylar corners from granola wrappers that go unnoticed when they fall to the ground and a stray tissue that falls out of a pocket. So, people are starting to get it Unfortunately, the same can't always be said of outdoor areas in close proximity to vehicle access.

The Leave No Trace Center for Outdoor Ethics does a great job in spreading the word.  The links above are from their website.  If you would like more info about their efforts, Click Here.