I traffic in words, and yet words sometimes seem wholly inadequate to convey an experience.Yet I owe it to myself to try.I recently returned from my third journey to the bottom of the Grand Canyon. I made the trek in 2008 and again in 2012. This time was different.This time, no mules carried my supplies. Instead, I carried a backpack containing 28 pounds of everything I would need for four days and three nights.This time, no Phantom Ranch cabin awaited at the bottom.This time, I journeyed into a more remote part of the Canyon.This time, I had a guide.