Monsoon light at the Grand Canyon. By Adam Schallau.

Sunlight breaks through a summer thunderstorm illuminating the Colorado River. Captured during the monsoon season from the South Rim of Grand Canyon National Park in Arizona.

Title: Light on the River
Date: July 2011
Camera& Lens: Canon EOS 5D Mark II & 24-105mm f/4L IS USM
Exposure: 0.3 seconds at f/11, ISO 100.