Thanks Jason, it was a 100 second exposure at f/4.5 and 13mm. The moon was near full as well behind me, so the face of the tower was lit up brilliantly. I used a headlamp to light up some of the trees around the base.
You may not remember, but I was at the tower with you last year sometime (~November). Do you recall, "Use the Black Foot!" ?
During Mike's late night ascent of Grendel, the guy that was with you (forgot his name), yelled up to Mike "Use the Black Foot!" on the 'Black Streak' route. Not as funny now as it was in our stupor that night...but it stuck in my head!