Exhausted from our strenuous trek into the Grand Canyon, we needed a day of relaxing to recharge our batteries, so we camped at the North Rim campground and enjoyed the viewpoints from around there. The campground was virtually empty, aside from a large group of firefighters who were conducting a seemingly large-scale prescribed burn in the forests along the North Rim. The smoke from the burns drained into the canyon, filling it with haze and making for some strange atmospheric conditions.