On the rise over the hill sitting atop the most powerful rocket in the US's current arsenal. We were 5 miles away and still potent enough that you could hear parked cars rattling with the acoustical energy.
I took video as well: http://www.youtube.com/watch?v=BWOnpH6OUhE
Delta IV Heavy
Classified NRO payload
August 28th, 2013
Sigma 150-500mm f/5-6.3