This was one of those trips where I seemed snakebit...it seemed like everything that could go wrong did.
For example, I went there for the predicted snowfall. Turns out, it was just a little too warm for snow, so it just rained. The temps were hovering just above freezing on the rim, so in the depths of the canyon it was quite a bit warmer. This combination produces fog. wonderful, tantalizingly misty, incredible for photography, fog.
Except there was way too much of it. Everywhere. Along the rim, in the canyon. Nothing but fog for 3 days. One morning heading to the rim for first light (what a joke), I almost hit an elk on the west rim drive while driving 8 miles an hour. That dude came out of nowhere. I swear. (he was standing in the road) The fog was that thick.
Of course, as a photographer, I knew it has to break, and of course, without letting my imagination run wild, the possibilities included: god beams, rainbows of all kinds etc. Now mind you this was my conservative thinking on the possibilities.
After about 3 days, at 10 in the morning the fog burned off. Sometimes, you get what you need to quote the Rolling Stones