After a week in the canyon with not enough food, we hiked back up to the rim and camped there for the night. In the evening, the wet rocks at the top of the canyon were illuminated brilliantly by the setting sun. Amazing colors. At this point we had eaten all our food except for our emergency food (cans of tuna). And we left the food cache from who knows how long ago alone too (one whole chicken, in a can, was the most memorable item).